1 00:00:02,320 --> 00:00:05,920 Nazi yubot maestro Carl Ditz is winning 2 00:00:05,920 --> 00:00:08,000 the battle of the Atlantic. 3 00:00:08,000 --> 00:00:11,040 >> Happy hunting. 4 00:00:11,040 --> 00:00:13,840 >> One torpedo straight into the magazine. 5 00:00:13,840 --> 00:00:16,560 Bullse eyee. 6 00:00:16,560 --> 00:00:19,760 >> One torpedo, one ship. 7 00:00:19,760 --> 00:00:23,720 >> This is our happy time. 8 00:00:26,320 --> 00:00:29,519 >> 20 seconds. That must be a record. Our 9 00:00:29,519 --> 00:00:31,119 main weapon has to be the torpedo 10 00:00:31,119 --> 00:00:33,520 carrying yubot. 11 00:00:33,520 --> 00:00:36,480 >> Britain is on its knees. 12 00:00:36,480 --> 00:00:38,160 >> If we keep losing ships, the country 13 00:00:38,160 --> 00:00:39,680 will be down to just a few weeks of 14 00:00:39,680 --> 00:00:41,840 supplies. People will be starving to 15 00:00:41,840 --> 00:00:42,719 death. 16 00:00:42,719 --> 00:00:44,960 >> May the enemy never know the secret of 17 00:00:44,960 --> 00:00:46,719 our success. 18 00:00:46,719 --> 00:00:49,440 >> The British are oblivious to the Yubot's 19 00:00:49,440 --> 00:00:50,320 tactics. 20 00:00:50,320 --> 00:00:52,320 >> You need to get in the minds of those 21 00:00:52,320 --> 00:00:55,960 Yubot aces. 22 00:00:58,719 --> 00:01:01,280 No way back to Germany this time. There 23 00:01:01,280 --> 00:01:03,359 are glimmers of hope. The 24 00:01:03,359 --> 00:01:06,560 >> capture of the Enigma machine was a huge 25 00:01:06,560 --> 00:01:07,520 coup. 26 00:01:07,520 --> 00:01:12,439 >> Well, let's find them and destroy them. 27 00:01:12,560 --> 00:01:15,920 But they prove to be dead ends. 28 00:01:15,920 --> 00:01:18,960 >> Find out what's happening and sink the 29 00:01:18,960 --> 00:01:20,720 Yubot. 30 00:01:20,720 --> 00:01:23,600 The Royal Navy turns to the Rens to 31 00:01:23,600 --> 00:01:26,000 uncover the Yubot secrets. 32 00:01:26,000 --> 00:01:28,320 >> That is what we will do here by playing 33 00:01:28,320 --> 00:01:30,880 through scenarios and recreating battles 34 00:01:30,880 --> 00:01:33,600 in a war game. 35 00:01:33,600 --> 00:01:38,520 >> So, who thinks they can sink a Yubot? 36 00:01:50,240 --> 00:01:52,799 Admiral Dennit says Ubot are hunting 37 00:01:52,799 --> 00:01:56,479 British convoys like wolf packs. 38 00:01:56,479 --> 00:01:58,960 They work together to track down their 39 00:01:58,960 --> 00:02:01,439 prey and coordinate their deadly 40 00:02:01,439 --> 00:02:02,719 attacks. 41 00:02:02,719 --> 00:02:05,200 >> Looks like a good day for us. 42 00:02:05,200 --> 00:02:07,759 >> Enemy convoy inside. 43 00:02:07,759 --> 00:02:11,920 >> AM 1452 northwest course. 44 00:02:11,920 --> 00:02:13,200 >> Speed 45 00:02:13,200 --> 00:02:15,599 >> 8 knots 46 00:02:15,599 --> 00:02:17,440 >> about 47 00:02:17,440 --> 00:02:19,520 30 ships. 48 00:02:19,520 --> 00:02:21,599 We're the shadow convoy till support 49 00:02:21,599 --> 00:02:25,319 arrives. Y 50 00:02:28,160 --> 00:02:31,440 >> the weather to hunt 51 00:02:31,440 --> 00:02:34,160 Elmo's fire. 52 00:02:34,160 --> 00:02:37,720 It's an omen. 53 00:02:44,319 --> 00:02:47,280 It's also an oven. 54 00:02:47,280 --> 00:02:51,280 >> The crutch wise about 55 00:02:51,280 --> 00:02:52,800 >> Well, I wouldn't want you to get ahead 56 00:02:52,800 --> 00:02:54,800 in the tunnage wager. 57 00:02:54,800 --> 00:02:57,519 >> You greedy bastard. We can share the 58 00:02:57,519 --> 00:02:59,920 tunnage we sent to the bottom. 59 00:02:59,920 --> 00:03:02,560 >> Plenty to go round. 60 00:03:02,560 --> 00:03:06,319 >> The orders are to wait till nightfall. 61 00:03:06,319 --> 00:03:08,560 >> Happy hunting. 62 00:03:08,560 --> 00:03:10,800 The yubot captains are driven by a 63 00:03:10,800 --> 00:03:13,360 fierce competition to sink the highest 64 00:03:13,360 --> 00:03:15,040 tonnage. 65 00:03:15,040 --> 00:03:16,720 >> They got awarded the night's cross if 66 00:03:16,720 --> 00:03:20,959 they sunk 100,000 tons of cargo. This is 67 00:03:20,959 --> 00:03:23,519 a game of oneupmanship. 68 00:03:23,519 --> 00:03:26,959 Kretchma pin. They are focusing on the 69 00:03:26,959 --> 00:03:29,959 prize. 70 00:03:30,000 --> 00:03:32,319 >> This is the era of the great yubot aces. 71 00:03:32,319 --> 00:03:35,519 This is where audacity pays. where poor 72 00:03:35,519 --> 00:03:37,680 defense of convoys is something the 73 00:03:37,680 --> 00:03:39,760 Germans can exploit. 74 00:03:39,760 --> 00:03:42,560 >> The competitive Ubot aces are wreaking 75 00:03:42,560 --> 00:03:47,120 havoc on transatlantic trade 76 00:03:47,120 --> 00:03:49,760 and the Royal Navy doesn't understand 77 00:03:49,760 --> 00:03:51,040 their tactics. 78 00:03:51,040 --> 00:03:54,000 >> By the early spring of 1941, Dunit's 79 00:03:54,000 --> 00:03:59,200 Ubot had sunk a total of 650 ships. 80 00:03:59,200 --> 00:04:03,360 You have a island nation where 95% or so 81 00:04:03,360 --> 00:04:05,840 of the energy that Britain requires is 82 00:04:05,840 --> 00:04:08,640 brought in from abroad. 70 plus% of the 83 00:04:08,640 --> 00:04:10,879 food stuffs. It's a terribly dangerous 84 00:04:10,879 --> 00:04:13,879 situation. 85 00:04:16,320 --> 00:04:18,639 The British are losing so much shipping 86 00:04:18,639 --> 00:04:21,440 that Winston Churchill issues the Battle 87 00:04:21,440 --> 00:04:24,400 of the Atlantic directive. He orders 88 00:04:24,400 --> 00:04:27,680 that all Ubot are to be targeted and all 89 00:04:27,680 --> 00:04:32,000 Ubot shipping yards have to be bombed. 90 00:04:32,000 --> 00:04:34,639 >> But it makes little difference. Ditz 91 00:04:34,639 --> 00:04:37,840 protects his Ubot in concrete submarine 92 00:04:37,840 --> 00:04:39,600 pens. 93 00:04:39,600 --> 00:04:42,240 Churchill's bombs failed to penetrate 94 00:04:42,240 --> 00:04:44,080 them. 95 00:04:44,080 --> 00:04:46,960 >> Germany has conquered France. Because 96 00:04:46,960 --> 00:04:48,400 she's conquered France, she now has a 97 00:04:48,400 --> 00:04:50,720 sequence of Atlantic ports that enable 98 00:04:50,720 --> 00:04:52,639 her to get directly into the central 99 00:04:52,639 --> 00:04:55,280 Atlantic. 100 00:04:55,280 --> 00:04:57,520 >> Dits can attack convoys leaving the 101 00:04:57,520 --> 00:05:00,160 southern ports of Britain with impunity. 102 00:05:00,160 --> 00:05:02,479 So the western approaches convoy routes 103 00:05:02,479 --> 00:05:05,520 are transferred northwards to Liverpool 104 00:05:05,520 --> 00:05:08,800 and other ports. The convoy command 105 00:05:08,800 --> 00:05:13,360 headquarters is also moved to Liverpool. 106 00:05:13,360 --> 00:05:16,400 This was a place of constant activity 107 00:05:16,400 --> 00:05:19,400 24/7. 108 00:05:21,840 --> 00:05:23,759 The majority of the people working there 109 00:05:23,759 --> 00:05:27,240 were the rents. 110 00:05:35,039 --> 00:05:37,600 The head of the rens, Vera Lorton 111 00:05:37,600 --> 00:05:40,479 Matthews, wants the Navy to give her 112 00:05:40,479 --> 00:05:44,680 team even greater responsibilities. 113 00:05:44,960 --> 00:05:47,840 >> Sir Percy Noble was in charge of Western 114 00:05:47,840 --> 00:05:50,160 approaches in Liverpool. Now, he was a 115 00:05:50,160 --> 00:05:52,320 man with enormous experience in the 116 00:05:52,320 --> 00:05:53,520 Navy. 117 00:05:53,520 --> 00:05:55,919 >> Thank you for coming to Liverpool. 118 00:05:55,919 --> 00:05:58,720 >> He was an old hand. He knew the ropes, 119 00:05:58,720 --> 00:06:00,479 but he'd never really faced something 120 00:06:00,479 --> 00:06:02,720 like this before. And he was desperately 121 00:06:02,720 --> 00:06:05,600 trying to find a way to stop these 122 00:06:05,600 --> 00:06:07,199 terrible, terrible losses that were 123 00:06:07,199 --> 00:06:09,440 being inflicted by the Ubot. 124 00:06:09,440 --> 00:06:11,360 >> It's a relief to escape the bombs 125 00:06:11,360 --> 00:06:13,600 raining down on London Town. 126 00:06:13,600 --> 00:06:16,319 >> We have our own blitz. A bomb landed a 127 00:06:16,319 --> 00:06:18,080 stones throw away from here. Quite a 128 00:06:18,080 --> 00:06:19,360 commotion. 129 00:06:19,360 --> 00:06:22,560 >> Nowhere safe. 130 00:06:22,560 --> 00:06:25,440 How did the Atlantic cruise go? 131 00:06:25,440 --> 00:06:29,319 A real eye opener. 132 00:06:32,160 --> 00:06:34,319 >> Bloody chaotic mess would be a polite 133 00:06:34,319 --> 00:06:36,240 way of putting it. 134 00:06:36,240 --> 00:06:38,560 >> Did you learn anything? 135 00:06:38,560 --> 00:06:40,400 >> I was on a destroyer attached to the 136 00:06:40,400 --> 00:06:42,720 escort. Orders from shore were flooding 137 00:06:42,720 --> 00:06:44,560 in, sending the other escort ships on 138 00:06:44,560 --> 00:06:47,280 wild goose chases. In the end, our 139 00:06:47,280 --> 00:06:49,120 destroyer was the only escort left 140 00:06:49,120 --> 00:06:52,000 protecting the convoy. The poor captain 141 00:06:52,000 --> 00:06:54,400 was going stark raving mad. 142 00:06:54,400 --> 00:06:56,240 >> Any enemy engagement? 143 00:06:56,240 --> 00:07:00,160 >> Thank god no. Curtains for us all. 144 00:07:00,160 --> 00:07:02,560 >> You need to get in the minds of those 145 00:07:02,560 --> 00:07:06,080 Yubot aces, so they're called. 146 00:07:06,080 --> 00:07:07,680 >> Well, that's easier said than done, I'm 147 00:07:07,680 --> 00:07:08,880 afraid. 148 00:07:08,880 --> 00:07:10,880 >> Let me know if the Rens can do anything 149 00:07:10,880 --> 00:07:13,919 to help. We are here to serve. 150 00:07:13,919 --> 00:07:16,240 >> Thank you. I do appreciate having your 151 00:07:16,240 --> 00:07:19,039 ren here. They certainly brighten the 152 00:07:19,039 --> 00:07:21,840 place up. 153 00:07:22,560 --> 00:07:25,199 They can do more than that. 154 00:07:25,199 --> 00:07:27,440 Much more. 155 00:07:27,440 --> 00:07:31,319 How nice to see you. 156 00:07:31,440 --> 00:07:33,759 Virilon Matthews is going to individuals 157 00:07:33,759 --> 00:07:35,680 in the Navy and going the Rens can do 158 00:07:35,680 --> 00:07:37,440 this. The Rens can give you what you 159 00:07:37,440 --> 00:07:40,160 need. They can fill these positions. 160 00:07:40,160 --> 00:07:42,720 This is powerful stuff. 161 00:07:42,720 --> 00:07:45,680 Vera Lorton Matthews is determined to 162 00:07:45,680 --> 00:07:48,880 transform the Rens into a force who can 163 00:07:48,880 --> 00:07:52,319 help fight back against the Hubot. 164 00:07:52,319 --> 00:07:54,800 The Yubot had another advantage over the 165 00:07:54,800 --> 00:07:57,919 Royal Navy. They could communicate in 166 00:07:57,919 --> 00:08:01,280 secret, so the Navy could not predict 167 00:08:01,280 --> 00:08:03,120 their movements. 168 00:08:03,120 --> 00:08:05,599 >> We are back in business. 169 00:08:05,599 --> 00:08:07,599 Send beacon signal. Enemy convoy in 170 00:08:07,599 --> 00:08:10,599 sight. 171 00:08:13,199 --> 00:08:19,360 Square AM 1452 course 330° 172 00:08:19,360 --> 00:08:22,560 report convoy at 1249 173 00:08:22,560 --> 00:08:26,599 speed 8 knots. 174 00:08:33,200 --> 00:08:35,680 The Germans sent their messages through 175 00:08:35,680 --> 00:08:38,560 an enigma machine. When the operator 176 00:08:38,560 --> 00:08:42,000 would hit a key to input a letter, that 177 00:08:42,000 --> 00:08:44,320 would be transferred through three 178 00:08:44,320 --> 00:08:47,519 rotating wheels. Each had 26 positions. 179 00:08:47,519 --> 00:08:49,680 So that by the time it was sent out into 180 00:08:49,680 --> 00:08:52,560 the ether, that key had been changed, 181 00:08:52,560 --> 00:08:55,760 get ready for this number, 160 182 00:08:55,760 --> 00:08:59,880 quintilion times. 183 00:09:01,040 --> 00:09:06,080 Send to U99, U70, UA, U37. 184 00:09:06,080 --> 00:09:08,399 Report by short signal. Yes. When 185 00:09:08,399 --> 00:09:11,399 attacking. 186 00:09:11,519 --> 00:09:13,760 >> Donut is asking for updates all the 187 00:09:13,760 --> 00:09:16,320 time, but these are gibberish until we 188 00:09:16,320 --> 00:09:20,040 can break the code. 189 00:09:24,720 --> 00:09:27,040 One man who might be able to predict the 190 00:09:27,040 --> 00:09:30,000 yubot movements through wargaming is 191 00:09:30,000 --> 00:09:33,279 Gilbert Roberts, but his career in the 192 00:09:33,279 --> 00:09:37,680 Navy was cut short by tuberculosis. 193 00:09:37,680 --> 00:09:40,320 >> Due to his illness, Roberts at this 194 00:09:40,320 --> 00:09:42,160 point is in the home guard. Those who 195 00:09:42,160 --> 00:09:44,160 can't serve in the front line volunteer 196 00:09:44,160 --> 00:09:46,880 for service in defense of the UK. It's 197 00:09:46,880 --> 00:09:48,880 better than nothing, but must have been 198 00:09:48,880 --> 00:09:50,959 a heartbreaking experience for a man 199 00:09:50,959 --> 00:09:52,560 with that level of understanding of 200 00:09:52,560 --> 00:09:55,959 naval tactics. 201 00:09:58,720 --> 00:09:59,680 >> Who goes there? 202 00:09:59,680 --> 00:10:03,600 >> Oh, for crying out, lad. Game's up. 203 00:10:03,600 --> 00:10:07,040 Let's cut the round. 204 00:10:07,040 --> 00:10:08,399 >> I'm sorry to say, but if this had been 205 00:10:08,399 --> 00:10:10,640 the real show, we'd all be gone. You lot 206 00:10:10,640 --> 00:10:12,959 are as inconspicuous as a herd of bull 207 00:10:12,959 --> 00:10:13,600 elephants. 208 00:10:13,600 --> 00:10:15,680 >> It's my lambos, sir. I think I've caught 209 00:10:15,680 --> 00:10:17,600 a cold. 210 00:10:17,600 --> 00:10:19,120 >> Well, 211 00:10:19,120 --> 00:10:20,399 better what happens here than when the 212 00:10:20,399 --> 00:10:23,720 Germans arrive. 213 00:10:25,200 --> 00:10:28,760 >> You're all right, sir? 214 00:10:28,800 --> 00:10:30,640 >> Thank you. 215 00:10:30,640 --> 00:10:34,320 I used to be 100% fit. Now my health is 216 00:10:34,320 --> 00:10:38,000 just fitful. 217 00:10:38,000 --> 00:10:39,920 >> When he applies to all sorts of jobs 218 00:10:39,920 --> 00:10:42,160 with the Navy, he's told, "Well, no, I'm 219 00:10:42,160 --> 00:10:44,000 sorry. We can't accept you back because 220 00:10:44,000 --> 00:10:47,360 of this illness. 221 00:10:47,360 --> 00:10:49,120 >> He must be doing something for the 222 00:10:49,120 --> 00:10:54,120 fleet. He's waiting for an opportunity. 223 00:10:57,760 --> 00:11:00,480 Meanwhile, the Rens are using what 224 00:11:00,480 --> 00:11:03,519 intelligence the Royal Navy have in the 225 00:11:03,519 --> 00:11:07,680 Western Approaches plotting room. 226 00:11:07,680 --> 00:11:09,680 Loren played a key role tracking the 227 00:11:09,680 --> 00:11:12,800 location of the known convoys and the 228 00:11:12,800 --> 00:11:17,200 suspected Wolfpack units. 229 00:11:17,200 --> 00:11:18,880 >> I wanted to be a plotter cuz I 230 00:11:18,880 --> 00:11:20,959 discovered they had a very interesting 231 00:11:20,959 --> 00:11:24,399 job. The plot consisted of a large map 232 00:11:24,399 --> 00:11:26,720 and you could see all the number of 233 00:11:26,720 --> 00:11:29,519 enormous ships, battleships, battle 234 00:11:29,519 --> 00:11:33,480 cruisers, destroyers. 235 00:11:33,519 --> 00:11:35,920 But the Ubot rarely give away their 236 00:11:35,920 --> 00:11:38,920 positions. 237 00:11:46,320 --> 00:11:49,279 Driven by Dernitz's tonnage competition, 238 00:11:49,279 --> 00:11:51,440 Pin goes for the biggest kill of his 239 00:11:51,440 --> 00:11:55,920 career. The Turgy Viken, a whailing ship 240 00:11:55,920 --> 00:11:59,040 now converted into an oil tanker. But 241 00:11:59,040 --> 00:12:01,200 the main attraction for Pin is not the 242 00:12:01,200 --> 00:12:04,480 oil. vital for the British war effort. 243 00:12:04,480 --> 00:12:06,800 But the fact that the ship weighs over 244 00:12:06,800 --> 00:12:08,800 20,000 tons, 245 00:12:08,800 --> 00:12:12,639 >> it's big. A wher 246 00:12:12,639 --> 00:12:14,560 >> set torpedoes. 247 00:12:14,560 --> 00:12:19,600 Range 450 m. Depth 248 00:12:19,600 --> 00:12:22,639 9 m. Course 249 00:12:22,639 --> 00:12:27,240 330° 8 knots. 250 00:12:27,760 --> 00:12:31,399 >> Torpedo set. 251 00:12:34,560 --> 00:12:37,560 Fire 252 00:12:43,360 --> 00:12:45,440 >> directed 253 00:12:45,440 --> 00:12:47,680 30 m from the midship. 254 00:12:47,680 --> 00:12:49,279 >> That's a few thousand more tons for our 255 00:12:49,279 --> 00:12:52,279 tally. 256 00:12:56,800 --> 00:12:59,040 Wait, 257 00:12:59,040 --> 00:13:02,160 the beast isn't sinking. 258 00:13:02,160 --> 00:13:05,680 >> Sink the ships. That was the key. 259 00:13:05,680 --> 00:13:09,079 Go to hell. 260 00:13:12,560 --> 00:13:16,000 >> Dun's overall grand strategy for how the 261 00:13:16,000 --> 00:13:18,800 hubot could win this war was to sink as 262 00:13:18,800 --> 00:13:22,320 many ships as possible. Add up the total 263 00:13:22,320 --> 00:13:25,320 tonnage. 264 00:13:26,000 --> 00:13:31,279 >> Center U37, U47, U70, U99. 265 00:13:31,279 --> 00:13:33,760 Report position by squares by short 266 00:13:33,760 --> 00:13:36,560 signal. 267 00:13:36,880 --> 00:13:40,639 Who's attacking the whaler? 268 00:13:40,639 --> 00:13:43,040 >> He needed to instill competition among 269 00:13:43,040 --> 00:13:45,680 them in order to increase the tonnage. 270 00:13:45,680 --> 00:13:48,000 He worked out that he needed to sink 271 00:13:48,000 --> 00:13:49,680 700,000 272 00:13:49,680 --> 00:13:53,360 tons of cargo every month to win the 273 00:13:53,360 --> 00:13:55,360 war. 274 00:13:55,360 --> 00:13:57,839 >> This carefully designed competition 275 00:13:57,839 --> 00:14:01,519 kicks in. Cretchmer tries to claim the 276 00:14:01,519 --> 00:14:04,079 ship for himself, but the intense 277 00:14:04,079 --> 00:14:07,040 competition makes him and his fellow 278 00:14:07,040 --> 00:14:09,680 aces reckless. 279 00:14:09,680 --> 00:14:12,639 It's a flaw in Dernets's strategy that 280 00:14:12,639 --> 00:14:15,440 will come back to haunt him. 281 00:14:15,440 --> 00:14:18,000 >> Our turn. 282 00:14:18,000 --> 00:14:20,079 Let's put the wounded beast out of its 283 00:14:20,079 --> 00:14:23,040 misery. 284 00:14:23,040 --> 00:14:26,000 >> Set torpedoes. 285 00:14:26,000 --> 00:14:28,720 Torpedoes are said 286 00:14:28,720 --> 00:14:31,720 >> fire. 287 00:14:36,320 --> 00:14:39,120 >> Hit on the port side. The crew are 288 00:14:39,120 --> 00:14:41,839 abandoning ship. 289 00:14:41,839 --> 00:14:44,480 Sink. You bastard. Sink. 290 00:14:44,480 --> 00:14:46,079 >> We're picking up propeller noises on the 291 00:14:46,079 --> 00:14:47,199 hydrophone. 292 00:14:47,199 --> 00:14:48,240 >> How close? 293 00:14:48,240 --> 00:14:51,560 >> Too close. 294 00:14:52,800 --> 00:14:55,800 Enemy 295 00:14:56,079 --> 00:15:01,800 escorts. Two of them. Dive. Dive. Dive. 296 00:15:31,040 --> 00:15:33,279 The Royal Navy misses the chance to 297 00:15:33,279 --> 00:15:37,560 destroy Cretchmer's U999, 298 00:15:37,680 --> 00:15:40,079 but Dennit has lost all contact with 299 00:15:40,079 --> 00:15:43,720 Pin's U47. 300 00:15:45,199 --> 00:15:47,920 What's going on? Are there wireless 301 00:15:47,920 --> 00:15:50,240 transmitters down? Where's Pin in the 302 00:15:50,240 --> 00:15:50,959 U47? 303 00:15:50,959 --> 00:15:54,399 >> We don't know, sir. 304 00:15:54,399 --> 00:15:56,880 >> Transmit to Wolfpack. 305 00:15:56,880 --> 00:16:03,000 U47 report position and condition. 306 00:16:04,000 --> 00:16:06,399 >> Come on, Prian. 307 00:16:06,399 --> 00:16:10,680 Where in God's name are you? 308 00:16:10,720 --> 00:16:12,880 Donuts never gives up. He keeps sending 309 00:16:12,880 --> 00:16:14,240 out messages going, "Send me your 310 00:16:14,240 --> 00:16:17,360 location." But he hears nothing. 311 00:16:17,360 --> 00:16:20,360 Anything? 312 00:16:25,920 --> 00:16:28,480 No, sir. 313 00:16:28,480 --> 00:16:31,480 Shisa. 314 00:16:37,759 --> 00:16:40,399 It was all going so well and now 315 00:16:40,399 --> 00:16:43,399 silence. 316 00:16:45,519 --> 00:16:48,480 What's PM playing at? I bet he's going 317 00:16:48,480 --> 00:16:49,920 to claim the tonnage of that hefty 318 00:16:49,920 --> 00:16:52,880 whaler. 319 00:16:52,880 --> 00:16:55,199 >> While the yubot aces are obsessed with 320 00:16:55,199 --> 00:16:58,560 tonnage, Vira Lorton Matthews knows that 321 00:16:58,560 --> 00:17:00,560 if she can get enough intelligent women 322 00:17:00,560 --> 00:17:03,519 into the Rens, the Royal Navy will 323 00:17:03,519 --> 00:17:06,640 eventually run out of male brain power 324 00:17:06,640 --> 00:17:09,919 and be forced to come to her. And she 325 00:17:09,919 --> 00:17:12,559 has a strategy. What do you think of the 326 00:17:12,559 --> 00:17:14,319 new uniform? After all, you'll be 327 00:17:14,319 --> 00:17:15,439 wearing it. 328 00:17:15,439 --> 00:17:19,280 >> Well, Mom, I like the hat. I think it's 329 00:17:19,280 --> 00:17:20,640 jolly elegant. 330 00:17:20,640 --> 00:17:22,640 >> Well, it damn well should be. I had 331 00:17:22,640 --> 00:17:25,439 Edward Mullen, you design it. I want my 332 00:17:25,439 --> 00:17:27,520 Rens to be the talk of the town. 333 00:17:27,520 --> 00:17:32,440 >> I shall wear it like a cat on a catwalk. 334 00:17:33,679 --> 00:17:36,640 >> The Rens are given this very lovely 335 00:17:36,640 --> 00:17:38,320 uniform actually. I mean, it's designed 336 00:17:38,320 --> 00:17:42,799 by a famous fashion designer. 337 00:17:42,799 --> 00:17:45,840 We had tricorn hats with a badge at the 338 00:17:45,840 --> 00:17:47,360 front. 339 00:17:47,360 --> 00:17:50,480 The trousers are rather fetching. 340 00:17:50,480 --> 00:17:52,400 My father always said a woman should not 341 00:17:52,400 --> 00:17:54,640 be seen dead in a pair of trus. 342 00:17:54,640 --> 00:17:56,320 >> It's about time we started wearing the 343 00:17:56,320 --> 00:17:58,880 trousers. 344 00:17:58,880 --> 00:18:01,919 >> It was a very smart uniform. Black 345 00:18:01,919 --> 00:18:06,200 stockings and brass buttons. 346 00:18:07,360 --> 00:18:10,640 It looks lovely. Thank you. 347 00:18:10,640 --> 00:18:14,320 >> It made the rens very popular to join. 348 00:18:14,320 --> 00:18:18,240 People joined forth of clothes really. 349 00:18:18,240 --> 00:18:22,640 Everybody wanted to join the rens. 350 00:18:22,640 --> 00:18:24,400 As the rens fight to have their 351 00:18:24,400 --> 00:18:27,360 abilities recognized, Cretchmer is 352 00:18:27,360 --> 00:18:29,840 relentlessly pursuing the crown of 353 00:18:29,840 --> 00:18:33,360 tonnage king. 354 00:18:33,360 --> 00:18:35,760 >> Sir, we have something. 355 00:18:35,760 --> 00:18:38,080 It's faint, but it's definitely 356 00:18:38,080 --> 00:18:41,280 propeller noises to this house. 357 00:18:41,280 --> 00:18:42,799 >> Very good. 358 00:18:42,799 --> 00:18:44,720 >> Surface and head for that bearing cruise 359 00:18:44,720 --> 00:18:47,720 speed. 360 00:18:52,320 --> 00:18:54,960 >> Cretchmer, keen to add to his tonnage, 361 00:18:54,960 --> 00:18:58,240 is alerted to a 41 ship convoy 362 00:18:58,240 --> 00:19:00,640 transporting vital oil supplies to 363 00:19:00,640 --> 00:19:03,640 Britain. 364 00:19:04,640 --> 00:19:07,039 We're spoiled for choice. 365 00:19:07,039 --> 00:19:09,919 Let's start with the oil tanker. 366 00:19:09,919 --> 00:19:12,000 Set torpedoes. 367 00:19:12,000 --> 00:19:14,799 Range 1500 m. 368 00:19:14,799 --> 00:19:17,360 >> Torpedo set. 369 00:19:17,360 --> 00:19:20,360 >> Fire. 370 00:19:27,919 --> 00:19:30,240 That's as good as it gets. 371 00:19:30,240 --> 00:19:33,200 >> Set torpedoes. 372 00:19:33,200 --> 00:19:35,440 There's more than one oil tanker in this 373 00:19:35,440 --> 00:19:38,440 convoy. 374 00:19:40,240 --> 00:19:43,240 >> Fire. 375 00:19:50,960 --> 00:19:53,360 That makes six. 376 00:19:53,360 --> 00:19:57,440 One torpedo, one ship. 377 00:19:57,440 --> 00:20:01,000 Let's head home. 378 00:20:01,360 --> 00:20:04,080 >> Cretchmer has just taken his tally to an 379 00:20:04,080 --> 00:20:08,480 astounding 47 allied ships, weighing 380 00:20:08,480 --> 00:20:11,039 over 273,000 381 00:20:11,039 --> 00:20:14,640 tons. But flushed with success, 382 00:20:14,640 --> 00:20:20,280 Cretchmer's U99 becomes complacent. 383 00:20:29,919 --> 00:20:32,960 GET UP, MAN. GET UP. 384 00:20:32,960 --> 00:20:35,360 >> Zombie alarm. 385 00:20:35,360 --> 00:20:37,440 >> I'm done. I'm done. 386 00:20:37,440 --> 00:20:40,400 >> Dive. Dive. 387 00:20:40,400 --> 00:20:42,480 >> Why the devil have you dived? Are you 388 00:20:42,480 --> 00:20:43,840 sure we couldn't have gotten away on the 389 00:20:43,840 --> 00:20:44,400 surface? 390 00:20:44,400 --> 00:20:46,559 >> Yes, sir. We destroyed 800 meters 391 00:20:46,559 --> 00:20:48,880 before. They couldn't have missed us. 392 00:20:48,880 --> 00:20:51,440 >> Full speed submerged. Let's get out of 393 00:20:51,440 --> 00:20:54,440 here. 394 00:21:04,480 --> 00:21:09,000 >> Depth charges are too close for comfort. 395 00:21:21,679 --> 00:21:23,520 Sir, we've lost all thrust and 396 00:21:23,520 --> 00:21:25,039 propellers. 397 00:21:25,039 --> 00:21:27,360 >> He goes far beyond the depth that he 398 00:21:27,360 --> 00:21:28,799 should 399 00:21:28,799 --> 00:21:30,960 >> and so his instruments are broken, so 400 00:21:30,960 --> 00:21:34,480 he's forced to rise to the surface. 401 00:21:34,480 --> 00:21:38,919 The British are waiting for him. 402 00:21:40,480 --> 00:21:41,760 >> Let's get out of here. 403 00:21:41,760 --> 00:21:44,559 >> I'm afraid not, sir. Electric motors and 404 00:21:44,559 --> 00:21:47,200 steering a kaput. 405 00:21:47,200 --> 00:21:53,120 Radio Laurio now. Give me that. 406 00:21:53,120 --> 00:21:56,720 Two destroyers. Depth charges 53,000 407 00:21:56,720 --> 00:22:01,679 tons. Capture Kretzma. 408 00:22:01,679 --> 00:22:03,520 Prepare scuttling charges and destroy 409 00:22:03,520 --> 00:22:07,480 all documents and ciphers. 410 00:22:08,320 --> 00:22:12,760 No way back to Germany this time. 411 00:22:13,440 --> 00:22:17,039 In just over a week in March 1941, 412 00:22:17,039 --> 00:22:18,960 things are looking much brighter for the 413 00:22:18,960 --> 00:22:20,720 British. 414 00:22:20,720 --> 00:22:23,840 Ditz has lost contact with not one but 415 00:22:23,840 --> 00:22:26,640 three of his Yubot aces. 416 00:22:26,640 --> 00:22:33,320 >> I need you to find me U99 and U 100. Now 417 00:22:36,000 --> 00:22:39,000 creature, 418 00:22:39,039 --> 00:22:42,000 where the bloody hell are you? 419 00:22:42,000 --> 00:22:46,679 Don't go quiet on me like pre 420 00:22:48,480 --> 00:22:50,640 any news. 421 00:22:50,640 --> 00:22:53,039 >> The U37 has passed a message on from 422 00:22:53,039 --> 00:22:55,440 Cratchma. 423 00:22:55,440 --> 00:22:57,120 >> Bomb 424 00:22:57,120 --> 00:23:02,559 boat sunk. Hile Hitler Crashma 425 00:23:02,559 --> 00:23:08,600 two destroyers 53,000 tons. 426 00:23:15,280 --> 00:23:20,840 Add the 53,000 tons to fracturous tally. 427 00:23:39,840 --> 00:23:42,640 Ditz knows that Pin is never coming 428 00:23:42,640 --> 00:23:46,080 home. And now Cretchmer and Shepka are 429 00:23:46,080 --> 00:23:49,640 missing too. 430 00:23:49,679 --> 00:23:51,840 >> They were like sons to him, his dual 431 00:23:51,840 --> 00:23:54,559 commanders. 432 00:23:54,880 --> 00:23:57,440 For Dunit, it was a great shock because 433 00:23:57,440 --> 00:24:00,400 Pin was the paragon of Yubot Ace. He was 434 00:24:00,400 --> 00:24:06,400 a people's hero and now he was lost. 435 00:24:06,400 --> 00:24:08,640 When Otto Crretchma was still alive, I 436 00:24:08,640 --> 00:24:11,440 asked him what he thought was fate. And 437 00:24:11,440 --> 00:24:13,840 Kretchma thought it most likely that Pin 438 00:24:13,840 --> 00:24:15,760 was hit by one of his own torpedoes, 439 00:24:15,760 --> 00:24:20,320 that he was hit by a circle runner. 440 00:24:20,320 --> 00:24:23,600 Pin may have run out of luck, but the 441 00:24:23,600 --> 00:24:27,200 truth will likely never be known. 442 00:24:27,200 --> 00:24:30,240 >> Very shortly after Pin's mysterious 443 00:24:30,240 --> 00:24:33,440 death, a Shepka, who was another of the 444 00:24:33,440 --> 00:24:36,080 great aces, is also killed. 445 00:24:36,080 --> 00:24:38,640 >> I'd like to propose a wager. 446 00:24:38,640 --> 00:24:41,440 >> It's almost as though fate was listening 447 00:24:41,440 --> 00:24:43,919 to Shepka when he was betting his 448 00:24:43,919 --> 00:24:46,320 friends. First of 250,000 tons of 449 00:24:46,320 --> 00:24:49,440 shipping buys the champagne and within a 450 00:24:49,440 --> 00:24:54,320 few days all of them are taken out. 451 00:24:54,320 --> 00:24:56,400 >> Killing two and and capturing a third is 452 00:24:56,400 --> 00:25:00,240 a very major coup for the British. 453 00:25:00,240 --> 00:25:02,240 >> This could be the turning point to the 454 00:25:02,240 --> 00:25:04,080 British need in the Battle of the 455 00:25:04,080 --> 00:25:06,159 Atlantic. 456 00:25:06,159 --> 00:25:07,279 >> They think they're going to be able to 457 00:25:07,279 --> 00:25:08,559 interrogate this guy. They're going to 458 00:25:08,559 --> 00:25:12,600 be able to get something out of him. 459 00:25:16,320 --> 00:25:19,600 I must apologize for the welcome. 460 00:25:19,600 --> 00:25:22,159 >> May I have those back, please? They were 461 00:25:22,159 --> 00:25:24,400 a gift for my leader. 462 00:25:24,400 --> 00:25:27,919 >> All in good time. All in good time. 463 00:25:27,919 --> 00:25:29,360 You've made a bit of a name for 464 00:25:29,360 --> 00:25:30,880 yourself. 465 00:25:30,880 --> 00:25:32,880 >> Simply work in the service of the German 466 00:25:32,880 --> 00:25:35,880 Navy. 467 00:25:36,000 --> 00:25:37,360 Going through the pockets of all of 468 00:25:37,360 --> 00:25:40,000 Cretchma's crew, the British find this 469 00:25:40,000 --> 00:25:43,679 little plan of how a yubot would attack 470 00:25:43,679 --> 00:25:47,240 a British convoy. 471 00:25:48,240 --> 00:25:49,840 The British don't realize the 472 00:25:49,840 --> 00:25:52,000 significance of this sketch of this 473 00:25:52,000 --> 00:25:53,919 diagram that this might have been the 474 00:25:53,919 --> 00:25:57,360 key to avoiding so many more losses from 475 00:25:57,360 --> 00:26:00,520 the convoys. 476 00:26:00,559 --> 00:26:02,960 Nobody of importance saw it and so the 477 00:26:02,960 --> 00:26:07,720 British were still as clueless as ever. 478 00:26:07,760 --> 00:26:10,799 >> It's a massive missed opportunity. 479 00:26:10,799 --> 00:26:13,360 But the British do glean one positive 480 00:26:13,360 --> 00:26:15,440 piece of intelligence from the German 481 00:26:15,440 --> 00:26:17,360 prisoners. 482 00:26:17,360 --> 00:26:20,240 >> Very good. 483 00:26:20,240 --> 00:26:23,480 >> Thank you. 484 00:26:32,320 --> 00:26:34,960 U47. That's Pin's boat, correct? 485 00:26:34,960 --> 00:26:38,480 >> Gunther Pin's boat. 486 00:26:38,480 --> 00:26:38,640 Well, 487 00:26:38,640 --> 00:26:41,039 >> we know what happened to Cretchmer 488 00:26:41,039 --> 00:26:43,120 and Shepka. 489 00:26:43,120 --> 00:26:45,520 But it looks as though they lost Pin as 490 00:26:45,520 --> 00:26:47,679 well. 491 00:26:47,679 --> 00:26:51,679 Let's say our destroyers got Pin. 492 00:26:51,679 --> 00:26:55,120 Revenge for Scapperflow at last. Very 493 00:26:55,120 --> 00:26:57,440 good, sir. 494 00:26:57,440 --> 00:27:01,000 >> You boat down. 495 00:27:06,000 --> 00:27:08,080 >> The British use it as a propaganda coup. 496 00:27:08,080 --> 00:27:10,320 They announce the fact that he's died 497 00:27:10,320 --> 00:27:13,039 and they even drop leaflets over Germany 498 00:27:13,039 --> 00:27:16,679 saying, "Vo is 499 00:27:24,720 --> 00:27:27,760 A fine morning to you, Miss Laidawor. 500 00:27:27,760 --> 00:27:29,279 Ma'am, 501 00:27:29,279 --> 00:27:31,200 >> I see the Germans have finally admitted 502 00:27:31,200 --> 00:27:33,919 that rogue Prian is no more. 503 00:27:33,919 --> 00:27:35,600 >> I was heartened to see that Cretchmer 504 00:27:35,600 --> 00:27:37,279 received a brisk reception from the good 505 00:27:37,279 --> 00:27:38,640 folk of Liverpool. 506 00:27:38,640 --> 00:27:41,600 >> Quite. Let's hope our homegrown 507 00:27:41,600 --> 00:27:44,320 inquisition can ek out the Yubot's dirty 508 00:27:44,320 --> 00:27:46,000 secrets from him. 509 00:27:46,000 --> 00:27:47,600 Thank god we have got rid of some of the 510 00:27:47,600 --> 00:27:49,919 worst of them. 511 00:27:49,919 --> 00:27:52,080 >> I fear there may be many more where they 512 00:27:52,080 --> 00:27:55,240 came from. 513 00:27:55,520 --> 00:27:58,640 >> These three Ubot aces were not 514 00:27:58,640 --> 00:28:01,440 unreplaceable. A new generation of 515 00:28:01,440 --> 00:28:04,640 experienced Yubot commanders had grown 516 00:28:04,640 --> 00:28:08,080 and had learned from the experience of 517 00:28:08,080 --> 00:28:12,600 the Yubot aces. 518 00:28:17,840 --> 00:28:20,559 Carl Dennit, undeterred by the loss of 519 00:28:20,559 --> 00:28:23,440 his three aces, is more determined than 520 00:28:23,440 --> 00:28:27,039 ever to win the battle of the Atlantic. 521 00:28:27,039 --> 00:28:30,360 >> Mine fur, 522 00:28:32,000 --> 00:28:34,000 I'm pleased to report that our Ubot have 523 00:28:34,000 --> 00:28:37,120 sunk 90 enemy vessels and half a million 524 00:28:37,120 --> 00:28:39,360 tons of enemy shipping. 525 00:28:39,360 --> 00:28:41,679 But we must do more. 526 00:28:41,679 --> 00:28:44,320 We're on the cusp of great things. With 527 00:28:44,320 --> 00:28:46,720 more Hubot, we can ram home our 528 00:28:46,720 --> 00:28:48,640 superiority. 529 00:28:48,640 --> 00:28:51,520 So, I must ask again for the fleet of 530 00:28:51,520 --> 00:28:54,720 300 Yubot. I will then guarantee you a 531 00:28:54,720 --> 00:28:56,240 victory that will bring Britain to her 532 00:28:56,240 --> 00:28:58,640 knees and will go down in future 533 00:28:58,640 --> 00:29:02,440 histories of the Third Reich. 534 00:29:04,240 --> 00:29:08,120 >> I will consider it. 535 00:29:08,720 --> 00:29:11,919 >> Thank you. 536 00:29:18,480 --> 00:29:21,440 Donuts would like Hitler to make yubot 537 00:29:21,440 --> 00:29:23,919 the highest priority, but he's fighting 538 00:29:23,919 --> 00:29:26,159 against Hitler's commitment to the land 539 00:29:26,159 --> 00:29:28,159 war, and Hitler's just not ready to make 540 00:29:28,159 --> 00:29:31,640 that move yet. 541 00:29:31,679 --> 00:29:34,240 After failing to win Hitler over, 542 00:29:34,240 --> 00:29:36,960 Dernitz faces a major setback when the 543 00:29:36,960 --> 00:29:40,159 British sees an intact Ubot off Iceland 544 00:29:40,159 --> 00:29:43,120 in the North Atlantic. But that's not 545 00:29:43,120 --> 00:29:46,080 all they capture. 546 00:29:46,080 --> 00:29:49,200 The crew of the HMS Bulldog, the nearby 547 00:29:49,200 --> 00:29:52,320 destroyer, quickly got to the Uvote and 548 00:29:52,320 --> 00:29:56,760 were able to conduct a quick inspection. 549 00:30:04,960 --> 00:30:06,480 They find this extraordinary looking 550 00:30:06,480 --> 00:30:09,480 typewriter. 551 00:30:13,120 --> 00:30:15,679 The capture of the Enigma machine and 552 00:30:15,679 --> 00:30:21,240 code books was a huge coup. 553 00:30:26,640 --> 00:30:29,679 If we can crack these codes, then we can 554 00:30:29,679 --> 00:30:31,440 know at least where the wolfpacks are 555 00:30:31,440 --> 00:30:34,600 going to attack. 556 00:30:36,799 --> 00:30:38,960 This was an enormous moment of optimism, 557 00:30:38,960 --> 00:30:41,679 of great hope that finally we can get 558 00:30:41,679 --> 00:30:46,520 inside Durnets's mind. 559 00:30:52,399 --> 00:30:55,760 At Bletchley Park, a group of eccentric 560 00:30:55,760 --> 00:30:58,720 mathematicians, puzzle solvers worked 561 00:30:58,720 --> 00:31:01,279 hard to try to crack into this code and 562 00:31:01,279 --> 00:31:03,520 famously built what amounts to the 563 00:31:03,520 --> 00:31:07,520 world's first analog computer. 564 00:31:07,520 --> 00:31:10,640 Cracking the Enigma code soon brings a 565 00:31:10,640 --> 00:31:13,760 breakthrough, and the rens play a key 566 00:31:13,760 --> 00:31:15,840 role. 567 00:31:15,840 --> 00:31:17,760 You've seen the news? 568 00:31:17,760 --> 00:31:19,919 >> Yes. The Bismar. Marvelous 569 00:31:19,919 --> 00:31:22,799 >> indeed. I'm proud our rens in Y service 570 00:31:22,799 --> 00:31:26,240 in Scarra helped hunt the Bismar down on 571 00:31:26,240 --> 00:31:28,080 the QT. Of course, 572 00:31:28,080 --> 00:31:31,120 >> mom's the word. 573 00:31:31,120 --> 00:31:33,279 >> You wouldn't talk to your family or 574 00:31:33,279 --> 00:31:37,039 friends about what you did. 575 00:31:37,039 --> 00:31:40,960 I was in the Y station. 576 00:31:40,960 --> 00:31:44,799 Letter Y stood for naval intelligence. 577 00:31:44,799 --> 00:31:48,240 We needed to know whether German Ubot 578 00:31:48,240 --> 00:31:52,000 were lurking to attack our convoys. 579 00:31:52,000 --> 00:31:55,039 So what we were listening to was the 580 00:31:55,039 --> 00:31:58,799 radio signals between German naval bases 581 00:31:58,799 --> 00:32:00,880 and ships. 582 00:32:00,880 --> 00:32:03,360 You would sit down and you'd start 583 00:32:03,360 --> 00:32:06,960 twiddling up and down the wavelengths 584 00:32:06,960 --> 00:32:10,320 that the German fleet used. And if you 585 00:32:10,320 --> 00:32:12,720 picked up a signal, you would just write 586 00:32:12,720 --> 00:32:16,159 down exactly what you heard. The officer 587 00:32:16,159 --> 00:32:18,640 would inform Bletchley Park if it was 588 00:32:18,640 --> 00:32:20,640 code. 589 00:32:20,640 --> 00:32:23,200 Rens like Pat helped track down the 590 00:32:23,200 --> 00:32:26,000 Bismar, Germany's most prized 591 00:32:26,000 --> 00:32:29,000 battleship. 592 00:32:29,840 --> 00:32:31,760 In the Bismar chase, they're gathering 593 00:32:31,760 --> 00:32:33,519 intelligence. They're analyzing the 594 00:32:33,519 --> 00:32:36,240 positions. They're predicting potential 595 00:32:36,240 --> 00:32:39,600 German courses of action. 596 00:32:39,600 --> 00:32:41,679 They've discovered that the Bismar was 597 00:32:41,679 --> 00:32:44,480 in fact pointing in an entirely 598 00:32:44,480 --> 00:32:46,159 different direction and they were able 599 00:32:46,159 --> 00:32:51,240 to pursue her and sank her. 600 00:32:52,799 --> 00:32:55,039 It becomes apparent that the Rens are 601 00:32:55,039 --> 00:32:57,519 really good at this sort of stuff. 602 00:32:57,519 --> 00:32:59,440 >> Thanks to the cracking of the Enigma 603 00:32:59,440 --> 00:33:02,000 code, the Rens can monitor the German 604 00:33:02,000 --> 00:33:05,760 newbot wolf packs much more closely. 605 00:33:05,760 --> 00:33:07,440 If you look at what happens to convoys 606 00:33:07,440 --> 00:33:10,000 over the summer of 1941, Germans can't 607 00:33:10,000 --> 00:33:12,240 find them because they're reading the 608 00:33:12,240 --> 00:33:14,480 signal traffic as the hubot are sending 609 00:33:14,480 --> 00:33:16,960 it or as Donuts is replying. The 610 00:33:16,960 --> 00:33:19,120 principal means of defending merchant 611 00:33:19,120 --> 00:33:23,200 shipping is avoidance of the enemy. 612 00:33:23,200 --> 00:33:26,159 But it's a temporary reprieve. The 613 00:33:26,159 --> 00:33:29,519 Germans regularly change their codes and 614 00:33:29,519 --> 00:33:31,840 it proves impossible to track every wolf 615 00:33:31,840 --> 00:33:34,880 pack so the convoys can avoid them. 616 00:33:34,880 --> 00:33:37,279 This has tragic consequences for the 617 00:33:37,279 --> 00:33:40,279 Rens. 618 00:33:43,200 --> 00:33:44,880 >> The Aguilera. 619 00:33:44,880 --> 00:33:46,320 >> Yes, I I'm aware. 620 00:33:46,320 --> 00:33:48,640 >> The SS Aguilera, the commercial steamer, 621 00:33:48,640 --> 00:33:52,399 was torpedoed and sunk off Spain. 21 of 622 00:33:52,399 --> 00:33:54,960 my rens were on board. 623 00:33:54,960 --> 00:33:57,440 They all perished. Had they been aboard 624 00:33:57,440 --> 00:33:59,919 a Royal Naval Destroyer, they probably 625 00:33:59,919 --> 00:34:02,159 would have escaped the attack. 626 00:34:02,159 --> 00:34:04,399 A destroyer was also sunk. 627 00:34:04,399 --> 00:34:07,919 >> Don't evade the point. 628 00:34:07,919 --> 00:34:10,560 The point is that my rens are not 629 00:34:10,560 --> 00:34:13,359 allowed aboard royal naval vessels 630 00:34:13,359 --> 00:34:16,240 because it's considered to be bad luck. 631 00:34:16,240 --> 00:34:18,879 This is pure superstition. It's 632 00:34:18,879 --> 00:34:20,800 medieval. 633 00:34:20,800 --> 00:34:23,200 What is bad luck is that they were 634 00:34:23,200 --> 00:34:26,399 aboard a defenseless freighter. From now 635 00:34:26,399 --> 00:34:29,119 on, my rens will only travel aboard 636 00:34:29,119 --> 00:34:31,520 Royal naval vessels on foreign 637 00:34:31,520 --> 00:34:35,119 assignments. Is that clear? 638 00:34:35,119 --> 00:34:38,399 >> I am all too aware. I I sympathize with 639 00:34:38,399 --> 00:34:41,040 you and of course with the families of 640 00:34:41,040 --> 00:34:42,879 all those poor young women. 641 00:34:42,879 --> 00:34:45,839 >> Your sympathy is all very well, 642 00:34:45,839 --> 00:34:49,800 but I demand action. 643 00:34:50,879 --> 00:34:54,159 The SS Aguilia tragedy meant that the 644 00:34:54,159 --> 00:34:56,240 Navy had to rethink its policy about 645 00:34:56,240 --> 00:34:58,640 women and rens not being able to go on 646 00:34:58,640 --> 00:35:01,640 ships. 647 00:35:02,480 --> 00:35:04,640 The law was changed and finally women 648 00:35:04,640 --> 00:35:07,280 were also able to go on board naval 649 00:35:07,280 --> 00:35:10,280 ships. 650 00:35:16,960 --> 00:35:19,839 I just heard about the aguila. 651 00:35:19,839 --> 00:35:22,880 Did you know any of the rens? 652 00:35:22,880 --> 00:35:25,359 >> Each and everyone. 653 00:35:25,359 --> 00:35:27,280 I personally selected those who went to 654 00:35:27,280 --> 00:35:29,680 Gibraltar. 655 00:35:29,680 --> 00:35:32,400 Bright, lovely women. 656 00:35:32,400 --> 00:35:37,480 12 of them were from Y station SCRA. 657 00:35:38,400 --> 00:35:41,760 when I was told I was in the countryside 658 00:35:41,760 --> 00:35:46,079 enjoying the sweet aroma of honeysuckle. 659 00:35:46,079 --> 00:35:49,200 And now I shall forever associate that 660 00:35:49,200 --> 00:35:52,000 smell with my girls. 661 00:35:52,000 --> 00:35:54,480 My poor girls. 662 00:35:54,480 --> 00:35:58,079 How sad. And to think they were all lost 663 00:35:58,079 --> 00:36:00,960 on a slow old freighter. It's a tragedy 664 00:36:00,960 --> 00:36:03,200 that will just be repeated. 665 00:36:03,200 --> 00:36:05,280 >> No, 666 00:36:05,280 --> 00:36:08,240 it won't. 667 00:36:08,240 --> 00:36:12,280 I've made sure of that. 668 00:36:22,560 --> 00:36:26,160 >> In September 1941, the British hit a new 669 00:36:26,160 --> 00:36:30,320 low when Wolfpack sink 23 ships from two 670 00:36:30,320 --> 00:36:32,640 convoys alone. 671 00:36:32,640 --> 00:36:35,040 Despite their apparent breakthroughs, 672 00:36:35,040 --> 00:36:37,440 the Royal Navy seems to be back at 673 00:36:37,440 --> 00:36:39,359 square one. 674 00:36:39,359 --> 00:36:41,359 >> We have the results of the inquiry into 675 00:36:41,359 --> 00:36:45,119 convoy SL87 that I ordered. 676 00:36:45,119 --> 00:36:48,160 It does not make for an edifying read. 677 00:36:48,160 --> 00:36:50,480 The fact that seven out of 11 ships were 678 00:36:50,480 --> 00:36:52,800 sunk with no retaliation against the 679 00:36:52,800 --> 00:36:55,520 enemy is to be deplored. 680 00:36:55,520 --> 00:36:57,599 Shocking, I think you'd agree. 681 00:36:57,599 --> 00:36:59,280 >> Yes, indeed. 682 00:36:59,280 --> 00:37:03,440 >> And it's not for want of protection. 683 00:37:06,160 --> 00:37:08,960 The escort was a strong one for a convoy 684 00:37:08,960 --> 00:37:11,599 of this size. It is clear that the 685 00:37:11,599 --> 00:37:13,599 efforts of the escorts were poorly 686 00:37:13,599 --> 00:37:15,200 coordinated. 687 00:37:15,200 --> 00:37:20,520 >> Understood, sir. Loud and clear. 688 00:37:25,280 --> 00:37:28,880 What has become of our invincible Royal 689 00:37:28,880 --> 00:37:31,880 Navy? 690 00:37:32,160 --> 00:37:34,160 Never before in my long career have I 691 00:37:34,160 --> 00:37:37,760 seen such lack of gumption. 692 00:37:37,760 --> 00:37:37,920 If 693 00:37:37,920 --> 00:37:41,040 >> the prime minister gives us more ships, 694 00:37:41,040 --> 00:37:43,440 we at least have a chance. 695 00:37:43,440 --> 00:37:47,680 >> I'm trying. I'm trying. But we must deal 696 00:37:47,680 --> 00:37:52,160 with these Ubot once and for all. 697 00:37:52,160 --> 00:37:55,960 >> Leave it to me, sir. 698 00:38:05,520 --> 00:38:08,560 So Percy Noble realizes that if they do 699 00:38:08,560 --> 00:38:11,599 not find a way to stop this terrible 700 00:38:11,599 --> 00:38:13,760 yubot menace from sinking all of these 701 00:38:13,760 --> 00:38:16,000 ships that the British are going to have 702 00:38:16,000 --> 00:38:19,680 to capitulate to Hitler. 703 00:38:19,680 --> 00:38:21,920 >> The problem is we don't understand how 704 00:38:21,920 --> 00:38:24,640 the Germans are operating. 705 00:38:24,640 --> 00:38:27,640 Our 706 00:38:32,640 --> 00:38:34,560 agents in Spain have cited a convoy in 707 00:38:34,560 --> 00:38:36,640 Jibralta. 708 00:38:36,640 --> 00:38:38,000 >> How many ships? 709 00:38:38,000 --> 00:38:40,560 >> 32 merchant vessels protected by escort 710 00:38:40,560 --> 00:38:42,640 ships. 711 00:38:42,640 --> 00:38:46,079 >> Send a message to U67. 712 00:38:46,079 --> 00:38:49,119 Tell him to monitor the convoy. 713 00:38:49,119 --> 00:38:51,760 >> Put the other seven Ubot on standby to 714 00:38:51,760 --> 00:38:54,760 attack. 715 00:39:00,720 --> 00:39:02,480 HG76 716 00:39:02,480 --> 00:39:06,400 is the 32 ship convoy but with 16 717 00:39:06,400 --> 00:39:09,359 escorts plus an auxiliary aircraft 718 00:39:09,359 --> 00:39:12,079 carrier. The Audacity and the escort 719 00:39:12,079 --> 00:39:14,800 group is commanded by Frederick John 720 00:39:14,800 --> 00:39:18,599 Johnny Walker. 721 00:39:24,960 --> 00:39:27,040 HMS Stanley reports that she's under 722 00:39:27,040 --> 00:39:30,680 attack by a submarine. 723 00:39:30,720 --> 00:39:34,240 >> It's damn German hers. 724 00:39:34,240 --> 00:39:37,640 Where are they? 725 00:39:39,520 --> 00:39:42,520 Firefl 726 00:39:53,839 --> 00:39:55,520 Stern 727 00:39:55,520 --> 00:39:58,800 contact 1,200 yd. 728 00:39:58,800 --> 00:40:00,560 >> They've got modern radar and the great 729 00:40:00,560 --> 00:40:03,040 advantage of radar is it provides the 730 00:40:03,040 --> 00:40:04,960 kind of intelligence that Walker needs 731 00:40:04,960 --> 00:40:07,440 to tumble the battle in his direction. 732 00:40:07,440 --> 00:40:11,000 Five death charges. 733 00:40:20,480 --> 00:40:23,960 The pad ram. 734 00:40:37,280 --> 00:40:40,560 What's going on? 735 00:40:40,560 --> 00:40:44,160 >> It's radio silence from our Ubot. 736 00:40:44,160 --> 00:40:45,839 >> Order another three Ubot to join the 737 00:40:45,839 --> 00:40:48,240 Wolfpack. Tell them to regroup for 738 00:40:48,240 --> 00:40:50,560 another attack. We need to sink this 739 00:40:50,560 --> 00:40:53,560 convoy. 740 00:40:57,119 --> 00:41:00,599 >> We've been soup. 741 00:41:01,599 --> 00:41:04,720 Well, let's find them and destroy them. 742 00:41:04,720 --> 00:41:07,440 >> Buttercup starboard. 743 00:41:07,440 --> 00:41:08,800 >> Walker comes up with this idea of 744 00:41:08,800 --> 00:41:12,240 Buttercup, which is to turn his ships 745 00:41:12,240 --> 00:41:14,640 outward and to try and go over where the 746 00:41:14,640 --> 00:41:16,000 Ubot are. 747 00:41:16,000 --> 00:41:19,680 >> Come into our little trap. 748 00:41:19,680 --> 00:41:21,839 >> His assumption is that if he illuminates 749 00:41:21,839 --> 00:41:23,920 the entire area and moves out into the 750 00:41:23,920 --> 00:41:25,359 periphery, he will be able to pick one 751 00:41:25,359 --> 00:41:27,920 or two of these Ubot off. 752 00:41:27,920 --> 00:41:30,319 problem is it lights up the aircraft 753 00:41:30,319 --> 00:41:33,880 carrier Audacity. 754 00:41:36,319 --> 00:41:40,640 >> God's sake. Must be the Audacity. 755 00:41:40,640 --> 00:41:42,800 >> This is the ship that of course the Ubot 756 00:41:42,800 --> 00:41:46,960 can then identify and they sink it. 757 00:41:46,960 --> 00:41:47,119 Let's 758 00:41:47,119 --> 00:41:51,960 >> even things up. Fire death charges. 759 00:41:58,560 --> 00:42:01,720 Come on. 760 00:42:10,720 --> 00:42:14,520 Buttercup has prevailed. 761 00:42:14,800 --> 00:42:17,760 Four ships are sunk, but so are five 762 00:42:17,760 --> 00:42:20,240 Ubot. You call that a victory for the 763 00:42:20,240 --> 00:42:24,000 convoy in that case? 764 00:42:28,480 --> 00:42:31,119 We've lost five Ubot. 765 00:42:31,119 --> 00:42:34,160 >> Five Ubot. 766 00:42:34,160 --> 00:42:36,800 We can't let this happen again. Have 767 00:42:36,800 --> 00:42:38,079 they changed tactics? 768 00:42:38,079 --> 00:42:40,079 >> We've seen no evidence of that. They 769 00:42:40,079 --> 00:42:43,920 managed to blunder into our pack. 770 00:42:43,920 --> 00:42:46,240 >> They must be using some new technology 771 00:42:46,240 --> 00:42:50,359 to help find our wolf packs. 772 00:43:02,319 --> 00:43:04,319 The British believe they have found a 773 00:43:04,319 --> 00:43:07,599 repost to the Yubot menace thanks to 774 00:43:07,599 --> 00:43:11,079 Johnny Walker. 775 00:43:13,040 --> 00:43:17,240 >> Congratulations, Walker. 776 00:43:17,599 --> 00:43:19,920 You've delivered a long overdue message 777 00:43:19,920 --> 00:43:22,960 to the Nazis and their damned yubot in 778 00:43:22,960 --> 00:43:27,400 the best naval tradition. 779 00:43:31,839 --> 00:43:34,240 Thank you, sir. Although you should 780 00:43:34,240 --> 00:43:36,480 thank Buttercup. 781 00:43:36,480 --> 00:43:38,240 Buttercup. 782 00:43:38,240 --> 00:43:40,720 It's my pet name for my wife, Eileene, 783 00:43:40,720 --> 00:43:43,200 and it's the code name for the tactic we 784 00:43:43,200 --> 00:43:44,960 came up with to give Jerry a taste of 785 00:43:44,960 --> 00:43:48,800 their own medicine. I'm sorry. The idea 786 00:43:48,800 --> 00:43:51,440 of Operation Buttercup is to force the 787 00:43:51,440 --> 00:43:54,400 Ubot, the Herses, to dive. It's the 788 00:43:54,400 --> 00:43:57,599 easiest way to finish off a submarine is 789 00:43:57,599 --> 00:43:59,440 underwater with depth charges. We 790 00:43:59,440 --> 00:44:01,280 illuminate the sky so that we can see 791 00:44:01,280 --> 00:44:03,359 them if they surface and try to slip 792 00:44:03,359 --> 00:44:05,200 away under cover of darkness. 793 00:44:05,200 --> 00:44:08,240 >> I see. 794 00:44:08,240 --> 00:44:10,160 I'd like you to write up this buttercup 795 00:44:10,160 --> 00:44:12,480 maneuver in full so that I can issue it 796 00:44:12,480 --> 00:44:14,400 as part of our escort group operational 797 00:44:14,400 --> 00:44:16,480 instructions. 798 00:44:16,480 --> 00:44:19,359 Well done, Walker. 799 00:44:19,359 --> 00:44:22,680 Thank you, sir. 800 00:44:24,720 --> 00:44:27,280 Walker, superb commander, arguably the 801 00:44:27,280 --> 00:44:29,200 best ace of the war, but at the same 802 00:44:29,200 --> 00:44:32,160 time, he hadn't discovered the way the 803 00:44:32,160 --> 00:44:34,960 Germans were operating. That took other 804 00:44:34,960 --> 00:44:39,000 minds in another place. 805 00:44:42,240 --> 00:44:45,480 >> Hang on. 806 00:44:45,839 --> 00:44:49,079 Hang on. 807 00:44:51,200 --> 00:44:53,520 >> Commander Roberts. 808 00:44:53,520 --> 00:44:58,520 >> Yes. I was told to expect you. 809 00:45:02,560 --> 00:45:04,960 Serious doubts have been raised on high 810 00:45:04,960 --> 00:45:07,040 about Buttercup. 811 00:45:07,040 --> 00:45:10,000 Senior British admirals suspect it is 812 00:45:10,000 --> 00:45:14,040 another false dawn. 813 00:45:17,839 --> 00:45:19,760 >> The Royal Navy has to find a fresh 814 00:45:19,760 --> 00:45:22,240 approach to Donuts' tactics in the 815 00:45:22,240 --> 00:45:24,079 Battle of the Atlantic. And they find 816 00:45:24,079 --> 00:45:26,560 Gilbert Roberts in an unusual place 817 00:45:26,560 --> 00:45:28,480 training the Home Guard, retired, a 818 00:45:28,480 --> 00:45:32,000 survivor of tuberculosis. 819 00:45:32,000 --> 00:45:34,400 May I ask where you're taking me? 820 00:45:34,400 --> 00:45:38,160 >> London, sir. The admiral's here. 821 00:45:38,160 --> 00:45:39,920 >> Can I ask why? 822 00:45:39,920 --> 00:45:43,119 >> No. Borders. 823 00:45:43,119 --> 00:45:45,440 >> Mystery tour. 824 00:45:45,440 --> 00:45:48,760 What fun. 825 00:45:53,599 --> 00:45:56,079 Roberts is whisked up to London for a 826 00:45:56,079 --> 00:45:58,560 meeting with Ceil Osborne. Now, Ceil 827 00:45:58,560 --> 00:46:00,880 Osborne is an aid to the Prime Minister 828 00:46:00,880 --> 00:46:04,520 Winston Churchill. 829 00:46:13,280 --> 00:46:15,440 >> Commander Roberts, thank you for coming 830 00:46:15,440 --> 00:46:17,359 at such short notice. It was an 831 00:46:17,359 --> 00:46:19,599 invitation I couldn't receive, sir. 832 00:46:19,599 --> 00:46:23,839 >> Yes. Good. Straight to the point. It's 833 00:46:23,839 --> 00:46:25,599 clear that something needs to be done in 834 00:46:25,599 --> 00:46:27,440 the Battle of the Atlantic or we will 835 00:46:27,440 --> 00:46:30,800 lose the war. Simple as that. The prime 836 00:46:30,800 --> 00:46:33,839 minister is most worried. Merchant ships 837 00:46:33,839 --> 00:46:36,000 are being sunk at far faster rate than 838 00:46:36,000 --> 00:46:38,319 we are able to replace them. That's 839 00:46:38,319 --> 00:46:40,560 where you come in. I hear you've 840 00:46:40,560 --> 00:46:43,280 developed some interesting ideas about 841 00:46:43,280 --> 00:46:45,040 wargaming. 842 00:46:45,040 --> 00:46:47,839 I have, sir. Become something of a 843 00:46:47,839 --> 00:46:50,560 preoccupation. 844 00:46:50,560 --> 00:46:53,280 Good. We need to do something about the 845 00:46:53,280 --> 00:46:56,079 Ubot. A fortnight ago, we had a 846 00:46:56,079 --> 00:46:58,960 breakthrough. Captain Johnny Walker was 847 00:46:58,960 --> 00:47:01,839 escorting a fleet out of Gibralar. Faced 848 00:47:01,839 --> 00:47:04,160 with a full-on yubot attack, he managed 849 00:47:04,160 --> 00:47:07,920 to sink two. In all, we sank five. 850 00:47:07,920 --> 00:47:10,960 Walker, somewhat flush with his success, 851 00:47:10,960 --> 00:47:13,200 called the whole thing Buttercup. 852 00:47:13,200 --> 00:47:14,960 Buttercup. 853 00:47:14,960 --> 00:47:18,800 It's what he calls his wife, I believe. 854 00:47:18,800 --> 00:47:20,400 That's all well and good, but with my 855 00:47:20,400 --> 00:47:24,160 tactical hat on, I rather wonder whether 856 00:47:24,160 --> 00:47:27,040 Walker's success was not down to Lady 857 00:47:27,040 --> 00:47:30,480 Luck. Lucky butter. 858 00:47:30,480 --> 00:47:33,119 One more small thing before you go to 859 00:47:33,119 --> 00:47:37,079 Liverpool. Liverpool. 860 00:47:39,040 --> 00:47:44,599 Ah, yes, sir. We are ready. 861 00:47:49,200 --> 00:47:52,000 find out what's happening 862 00:47:52,000 --> 00:47:54,960 and sink the Ubot. 863 00:47:54,960 --> 00:48:01,240 >> Um, well, yes, of course. 864 00:48:07,280 --> 00:48:09,599 Time is not on your side, Roberts. You 865 00:48:09,599 --> 00:48:12,960 must uncover the Ubot's dirty tricks by 866 00:48:12,960 --> 00:48:15,520 recruiting and training a war gaming 867 00:48:15,520 --> 00:48:18,800 team. Got it? 868 00:48:18,800 --> 00:48:22,040 Yes, sir. 869 00:48:32,400 --> 00:48:35,520 School to play games. And I'll need men 870 00:48:35,520 --> 00:48:38,160 to staff the unit, too. All my best men 871 00:48:38,160 --> 00:48:40,079 are at sea. 872 00:48:40,079 --> 00:48:44,359 >> I hear you're in need of staff, 873 00:48:45,920 --> 00:48:47,040 >> sir. 874 00:48:47,040 --> 00:48:48,800 >> The rails. 875 00:48:48,800 --> 00:48:50,880 Ladies, if we lose the Battle of the 876 00:48:50,880 --> 00:48:55,079 Atlantic, we lose the war. 877 00:48:55,200 --> 00:48:59,000 >> Say the border set. 878 00:49:01,599 --> 00:49:03,119 >> Buttercup 879 00:49:03,119 --> 00:49:06,079 works. 880 00:49:06,079 --> 00:49:08,400 The Royal Navy are relying on luck to 881 00:49:08,400 --> 00:49:09,599 protect the convoys. 882 00:49:09,599 --> 00:49:11,920 >> We need to analyze yubot attacks and 883 00:49:11,920 --> 00:49:16,440 find a tactic to destroy them.