Original subtitles

- Our intelligence says the device is loaded onto a pallet

ready for transportation by lorry.

Police.

- You must disarm this device

before it reaches its target.

- Done, done.

- We have a device detonation E15

outside the UK Banking Group headquarters.

As well as E2, the London Commodities Exchange.

- The Bank of England,

so that makes three financial targets.

Just keep trying DCI Batra.

- Why didn't you call it in?

- I did, I asked DCI Batra to call it in.

Ah.

- You were part of a coordinated attack.

Tell us what this is all about.

- If it is chemical weapons, we can't take any risk.

- That is-

- Yeah, nasty.

The drone originated in Langshore,

on the edge of the Basin.

Do you think that's where they controlled it from?

- Go, Command.

Approaching the drone control surge radius now.

These people have got explosives to spare.

We don't know what they've got planned.

- RDX.

- Military-grade explosives.

- There's someone inside the room.

We've got a female tied to the door by a rope.

There's something on her back.

- Stay really still, Ally?

We're clear.

We're clear, we're clear.

- Is it because there's some kind of acceptance in it,

for it to be the last one?

- That's the job.

- We still have no leads on who these people are.

An attack is in progress on Old Fort Road

in my Mile End.

Control, this is Delta 1-7.

Shots fired on Old Fort Road.

- Okay, we've got two casualties, both dead.

If you open your mouth,

you know what's going to happen.

I'm going to use a scalpel, make a really small incision.

Talk to me.

What did you see? What happened?

- It was a kidnapping.

They took someone from the car.

- Who?

Who did they take?

- So, Hass tells you he's scared.

What do you say?

I mean, that's a, that's a brave thing in my book.

Man in his position.

What did you say back?

- I just said, you know, "It'll be fine,"

I've got his back.

- Lot of responsibility to carry.

Everything fine, how can you guarantee that?

- Well, he must get it, he was in the army.

I mean, you know, you've got to have confidence

in your leader,

know that they've got everything under control.

- Yeah, but this is Hass we're talking about.

- So?

- So, uh, you've worked together a long time.

He knows you very well.

He might not know the exact extent of your PTSD,

but he knows about the painkillers,

he knows you were self-medicating.

- Yeah, and he knows I'm over all that.

- And I know that.

- Look, I'm not scared.

I'm not scared of the devices.

I'm not scared of the bomber.

- Then what?

We always used to say, "Anyone who's not scared in contact,

that's a psycho."

- Well, I hope that's the ex-para in you talking

and not my therapist.

- If I was being your therapist,

I would say psychopath,

or loony.

Same thing.

You're not that. - No, I'm not that.

You know, I can't help the fact

I don't feel that kind of fear, I'm not scared.

I don't get to work and start thinking about my family

or the possibility of having one

or, you know, the future.

I don't think about the future ever.

- No one's ever said that that might not be

the healthiest thing in the world?

- Yeah, because without all of that,

what am I doing this for?

You all right, Danny?

- Right, let's get the kits checked, ready to go again.

All units are committed,

so we need to be prepared.

- Copy that. - On it.

- Thanks, Ren.

You good?

- Yeah.

- When you've sorted the kits,

why don't you go have a asleep?

- Yeah, all right.

- So that's three big devices,

two VODs and a kidnapping.

- Sounds like the beginning of a really bad joke.

- Yeah, it's not.

These bombers know how we work.

They're ready for us.

- Yeah, they're operating on a scale

that we've never seen before.

- I know, which is why we need IDs,

find out who we're working with.

- Wash,

I'm worried about Danny.

- He's fine.

- No, he's not.

- I know, no, I've got an eye on him.

- Yeah, it's been a lot, you know?

Feels like a month since this morning.

A lot's happened.

It's put us all on edge.

- Yeah.

- These are the men that were shot during the kidnapping,

but we still don't know who they are.

- What, at all?

- Nope, no ID, no biometrics, nothing.

It's like they don't exist.

- No one's claimed responsibility,

so we still don't know who's behind this.

- What about the person that was taken?

Any idea who they were?

- No one saw it.

- No one?

- People stopped filming before the grab.

They got scared off.

- What about the car?

- The SUV, plates were counterfeit.

We managed to retrace its inbound journey

as far as Southwest London,

and then, and then we lost it.

- Ah.

Right, okay, so the two VODs,

the boatyard where DCI Batra was killed,

what about that?

- Nothing.

No, everything was probably wiped down.

- What?

- Guys, we're not chasing ghosts.

There must be some forensics.

- Are we confident we trust the officer

that witnessed the kidnapping?

- The commander won't appreciate you

doubting her own people.

- They put a bomb in his mouth

to stop him from talking.

- Yeah, but why not kill him?

We've all seen these bombers don't hesitate

when it comes to killing others.

- Well, terror's more effective when you drag it out.

- Morning. - Morning.

- Morning. - Ma'am.

- Briefing room, everyone, please.

This is the anti-smuggling operation at Felix Storeport

that first alerted us to the existence of the IED.

Now, as we all know by now,

that IED ended up in a lorry

bound for the Bank of England.

Thanks to expo, this device did not detonate,

but two others did,

both with dire consequences.

14 dead, scores of injured.

Now the sharp drop in the value of the pound

appears to be the motive behind these specific targets.

They're objective to undermine the UK's economy.

Whether it's for disruption or personal gain, we don't know.

What we're also aware of is that alongside the device,

other weapons and explosives

were in the same shipment,

including military-grade RDX.

But none of these have been recovered.

- Why didn't we know about the other devices?

- The intelligence only flagged one.

We suspect the terrorists used three separate cells

to supply the three different weapons.

- Units in isolation?

- Yes.

Hard to track,

hard to identify a command structure.

- They're pros.

They'll be quick to shut down any loose ends.

They're ruthless.

- Whoever was kidnapped, that's the way in.

- I agree.

Find out who it is

and we can begin to build a picture.

Then we can isolate the individuals involved.

- Hiya. - You all right?

- Hey.

- We interrupting? - Oh,

just my pension disappearing in real time.

How's Helen?

- Determined to catch the bomber,

like the rest of us.

- Yeah, a bit more personal for her though, innit?

- Ah, it's always personal.

- Well, because you were able to salvage this device intact,

I've made some progress.

I've got some details from this mouth bomb.

- Yeah? - Right.

We'll take anything we can get.

- They've modified the spring release

to pack closer to the charge.

It's precision stuff. - Mm.

- Found this partial fingerprint.

Could well be the bomb maker's.

Brilliant.

- Sonya Reeves?

- Yes, that's me.

- I'm, uh, Ben from HSA. - I know who you are.

I've been waiting for 12 hours.

- Sorry.

- Okay, well, I've sent this partial over to tech.

Hopefully they'll be able to find a match.

- Can only hope. - Yeah.

- Cheers, mate, see you in a bit.

- Who's he?

- Oh, he's my bit on the side,

but he won't be comfortable if you watch,

so better go.

- Very funny. - Bye-bye.

So what have UK HSA been doing

that's more important than this?

- Well, you weren't very clear on what this is.

- I was explicit.

Oh, forget it.

- It's linked to the attacks.

This is a sample of the vomit from the driver

from the truck that was stopped.

- Right, how did you sign off with medical?

- Well, only 'cause he wasn't talking.

- Well, when did he vomit?

- Under interrogation.

- Well, hadn't he been shot?

I mean, that could be the reason.

- Yeah, I though that too,

but the officer that was running the interrogation,

he described some other symptoms.

Disorientation, nosebleed.

He might've been exposed to something.

- Well, where is he now?

- He's back in custody. - Any further problems?

- I don't know, he's under tight security.

Everyone's so focused on the emergency response,

no one's got time for this driver

if he isn't going to talk.

But I think we might have a problem.

- What sort of thing, some kind of pathogen?

- That's why I called you.

Expo 1, this is Gold Command.

- Go ahead.

- We have more on that lead.

The rebuild of the partial print taken from the mouth bomb

was matched to an individual who's known to us.

Her name is Leonora or Lenny Hoyle.

She's on a watch list.

- For what?

- She's associated with several different activist causes.

There's been death threats,

hate speech, that sort of thing,

but nothing on this scale.

But there's no previous evidence of bomb making.

- Okay, what are we expecting to find at this address?

- It's listed as her place of work.

She's a mechanic,

but she also has a background in electrical engineering.

Dynamic entry is authorised.

- What, after yesterday?

- Copy that, Gold Command.

Just to remind you,

they used a human shield at the boatyard.

- Yeah, I'm aware, Expo 1,

but we cannot afford to lose this lead.

We have to get ahead of these bombers

before there's another attack.

- Understood, Gold Command.

Send us the details, we're heading there now.

Stand by.

Expo 1, we've entered the building.

Over here.

- Stay back.

Well?

- It's Lenny Hoyle.

She'd obviously served her purpose.

Trojan 1, body found.

Stand by for instructions.

- All clear.

Wash.

- Well, it looks like we're in the right place.

There's a lot of electronics.

They're building something.

By the look of it, I'd say something intricate.

There's no sign of any explosives.

Some drawings here.

Could be of devices.

I'll keep taking a look.

Do you want to go and update Gold Command?

Copy that.

Trojan 1 to Gold Command.

- We're going to need all the forensics

we can get our hands on

to pull that place apart.

- Ma'am. - If we move fast enough,

this evidence could lead us straight to them.

If we don't, they'll get ahead of us.

God knows what they'll do next.

- Thought you might need a hand, Wash.

- Yeah, come in here.

Yeah, take a look at that paperwork.

- Somebody's been busy.

Well, the mouth bomb's here.

Elaborate plans.

I don't recognise this.

- Let's have a look.

Oh shit.

- What?

- They've been building something

to try to combat countermeasures.

They're using them to, uh, target secure locations.

Look at the electronics.

They're designed to avoid detection.

- Looks like she's been modifying them

for something else.

- Yeah, for what?

Here, look at this.

- Is it, "Cross, house, walk?"

Targets, yeah.

- Vauxhall Cross, Thames House, Blenheim Walk.

- MI6, MI5, SL15.

- Fuck.

Yeah, they're coming for us.

Gold Command, Expo 1.

We've got IED designs

all aimed at the security services.

Vauxhall Cross, Thames House, Blenheim Walk,

all of them.

They know we've found Lenny Hoyle.

Their opportunity to attack will be now or never.

- Received, Expo 1.

Who's the EDO?

- Me, ma'am.

- I need you to trigger Code 17.

Now, please.

- Right, yep.

- And begin the switch to emergency secondary servers.

We need them live.

You should be the one to alert Vauxhall Cross

and Thames House.

Full evacuation.

- Yes, ma'am.

- I'll assist Neil, ma'am.

- This way, everybody.

Make your way to the assembly point, please?

- Not until we're done.

That should light a fire under you.

- This is Central 1-3.

We have a Code 17 at CCHQ main.

Initiating service switch for secure data extraction.

Be advised, system vulnerable to cyber and electronic attack

until full reboot is complete.

All units proceed as instructed.

- Ma'am.

- I need to brief COBRA.

- Okay, you know your evacuation route?

- Yeah.

- Let's get moving.

- I don't have an escort.

- You do, I've been assigned.

You take your car,

I'll drive in front of you,

make sure everything's okay.

- Yep, fine.

- Okay.

- Gold Command, Expo 1.

- Expo 1, this is Central 1-3.

Gold Command is travelling.

Code 17 has been activated.

- Vauxhall Cross, Thames House, following procedure.

- What's Code 17?

- It's what happens when we think we're being compromised.

It's to protect our people, the data.

- People? - Yeah.

They'll be doing a full evacuation.

- Central 1-3, where's everyone been sent?

- Staff move to assembly points

and wait for emergency services.

- And where's Gold Command?

- Gold Command has to get to COBRA.

Bronze 2 is escorting her to her vehicle as we speak.

Listen, we've just seen drawings for a device

that could cancel out electronic countermeasures.

There's a chance they've got one into the building.

- Shit, Lenny Hoyle was a mechanic.

She was modding a device to fit under a car.

- Wait for me to drive off, ma'am.

And then follow me closely.

- Okay.

- Better let Control know we're a minute out.

- Central 1-3,

Gold Command is not safe.

Repeat, Gold Command is not safe.

We're about a minute away.

Okay.

- Wait, wait, stop, stop.

Put them down.

Put your keys down.

There might be a device in your car.

- The door's are locked.

I, I, I can't get out.

- Okay, don't move, don't touch anything.

That's it.

Okay.

Hands up.

Hands.

Some kind of signal receiver.

There's devices on both of your cars.

I'm going to examine your car now, okay?

Nothing.

It's got to be inside.

Commander, I'm going to start with you, okay?

You're priority.

Helen, I'm going to be straight with you, I promise.

Sit tight.

Okay, I think they've hacked the car's software.

That's what's allowed them to lock the doors.

- This building should be protected

from any electronic intrusion.

- Yeah, I know, but Brenton had to switch servers

due to Code 17.

- A Code 17 is a highly secret protocol.

- Well, it's not secret enough.

These bombers have taken control.

They know your protocols.

They knew you'd be travelling together

and that they could exploit the server switch.

I don't know what the explosives might be connected to,

so I need you to do a search inside the car, carefully.

- Okay, what am I looking for?

- Any wires, any sign of tampering,

something you've not seen before.

- Yeah. - Just talk me through it.

- Okay. - Tell me what you see.

No, no, Nia, don't open anything.

Just a visual.

- Okay.

No, I, I, I can't see anything.

Are you sure?

- No, why, why can't you just break the window?

- Because I have no idea how this device operates.

The glass could be a switch.

- Okay, understood.

- Keep looking for me, come on.

I, I, I, I can't.

Hang on, wait, wait.

Yeah? What have you got?

There's, um,

scratches o-on the steering wheel.

- Right, they weren't there before.

No? Right, well, let's get inside.

Get your keys.

That's it, now try

and get into the centre of the steering wheel,

really carefully.

Gently.

And take your time.

That's it, brilliant.

Slowly does it.

There it is.

Now I can see it, I can deal with it.

Deep breaths, okay?

- Yep. - Just going to see

if Morgan has the same setup.

Right, Helen,

I need to get into the centre of the steering wheel, okay?

- Okay. - Have you got your keys?

- Yeah.

- Okay, find a flathead.

Can you see that rim?

I just need you to go behind it and prize it away.

Now, there will be explosives behind there, okay?

But I'm going to handle it, o-okay?

- Yep.

- Exactly that.

Take your time.

There we go.

That's it, okay.

Gently take that out.

There it is.

It's all right.

Put that on the passenger seat for me.

Helen, put it on the passenger seat.

- Okay,

- Just going to radio through.

Central 1-3, this is Expo 1.

- Expo 1, go ahead. - Okay,

I've got at least two VB IEDs here.

Gold Command and Bronze 2 are both trapped in their cars,

which the bombers have hacked to gain control of.

I've got eyes on explosives,

but I don't know what the trigger is.

So I don't want to start

working on that yet.

These bombers have shown counter-EOD techniques before.

I don't want to risk activating the trigger

until I've understood how the device is put together.

- The cars haven't been there long enough

to be rigged unnoticed.

- Yeah, exactly.

So they must've been rigged at their home addresses

and then activated when they got here.

The server switch gave them a window to arm the device.

The rest is likely automated by something in the car,

else they'd have done it by now.

- Understood, Expo 1.

How could they have planned for all of this?

- I'll check the security log.

Who's had access to Code 17?

Central 1-3,

you need to get everyone out of the building,

including yourself.

- Copy that.

- You go, I'll, I'll be right behind you.

Neil. - Yeah.

Commander.

- Fuck.

Okay, think, think.

Fuck.

Fuck.

Fuck, fuck, fuck.

- Commander.

Looks like she's losing it. - Fuck.

- Are you okay to- - Yeah, yeah, yeah.

Yeah, c-come back to me.

- Helen, calm down.

Helen.

Helen. - Lana, get me out

this fucking car.

- Calm down.

Carry on like that and you will die, okay?

And listen to my instructions

and I'll get you out of this.

Helen, look at me.

We need to follow the wires

so I can find the power source.

Otherwise, I can't get in there.

Take your time.

No sudden moves.

- Um, I'm pretty sure they're going behind the dashboard

into the, the car's engine.

- Right, y-you're pretty sure or you sure?

- I'm sure, I'm sure. - Okay, great.

Right, we need to cut off the power.

The power source will probably be the battery.

- Okay. - So I need

to get into the bonnet.

- Okay. - I need you

to pop the bonnet.

- Lana, I can't.

- Helen, if you can't trust me now,

then what can I do?

The bonnet, Helen, come on.

It's the best chance you've got.

- O-Okay.

Well done.

- It's done, it's done.

- Disconnecting the battery

and we should be okay.

Easy as that.

- Were you close?

- No.

- You're still feeling it, just the same?

- I'm feeling the failure.

- Do you feel responsible?

- I am responsible.

I mean, no one's blaming me,

but I was the expo, I should've seen it.

- But you can't be expected to see every pitfall, surely?

You don't expect that of yourself?

- I have to expect that of myself.

- How can you?

It's basic human nature, no one's perfect.

You're good at your job.

I've, I've checked.

- You've been checking on me?

- Yeah.

I wanted to understand if you're a decent operator.

- Why, don't you respect people without talent?

- No, I can, but our conversations would be very different.

Do you ever think about the people that you were close to

when you lose someone like this at work?

You've lost some very significant people

in your life, right?

- Yeah, I know, but I don't think about them.

- Never? - Well, no,

not when I'm at work, no.

- How can you not?

- Because I'm trained to separate those thoughts.

- I understand that.

We all block out things that make a bad day worse.

But the very act of doing that,

of compartmentalising feelings,

means that they're going to creep into our head,

even if it's just a glimpse.

- It's like you're talking in riddles.

It's like I'm back with the therapists

that just talk like therapists.

It's not helpful. - Right.

- I don't know what you even mean.

- You had a relationship with someone

who turned out to be a terrorist.

- Whoa, where the fuck has that come from?

- It must've pulled the rug out from under you,

losing someone you loved,

who turned out to be- - Who I loved?

What the hell? What?

What, is this coming from these notes again?

- He killed your best friend, Joel Nutkins, didn't he?

He was responsible for the death of your brother.

- I'm not doing this.

- Do you feel the failure of that one as well?

Lana, you can't go.

- Watch me. - Look, you said yourself,

this is the only way you get to keep the job.

- Well, fuck the job.

I'll find a new therapist.

- Fine, keep running.

I think we found what scares you.

- What scares me is the amount of nonsense in your files.

- No.

There's places you won't go.

I will go there with you.

And all it needs is a bit of courage.

And you're not lacking in courage.

It's time.

It's time to face your fear.

It's time to face your anger,

the, the, the pressure,

the guilt that you are carrying everywhere you go.

And it might be the scariest thing

that you have ever done,

but it's where we find out what it's all for.

So, well, please, sit,

sit down.

- We've been over the device that killed Nia

and the one in Helen's car.

And you were right,

they were fitted outside CTHQ,

most likely in their homes.

And then they were armed when the server switched.

The devices were linked.

One of them was dead

from the moment they stepped in the car.

- Okay, so we are dealing with someone

who knows the inner workings of Counterterror Command.

- It looks like it, yeah.

- I can't get a handle on this.

First, the massive financial attacks,

then targeting the security services.

I mean, God only knows what's next.

I need to tell you something.

- What?

Please leave a message after the tone.

- You tried to kill me,

and that wasn't the deal.

So listen to me very, very carefully.

I need proof that my brother is still alive.

And if I do not get that, I will do everything,

everything in my power to stop you.

- That was your sister.

Yeah.

And I hope, for your sake,

she does what she's supposed to.

- That guy that showed up at my lab yesterday,

he was from UK HSA.

I had him analyse a sample of the lorry driver's vomit.

- Okay. - Well,

he couldn't be conclusive,

so he took it for further tests.

Promised to keep it between us.

He sent me this 20 minutes ago.

- What is it?

- It's the driver's symptoms.

I was worried it was a pathogen, but it's not.

- Oh, thank Christ.

- It's worse, Lana.

It's radiation poisoning.

- Fuck.

- The symptoms exhibited,

the low platelet count,

the white cell crash.

He's been near something hot.

- How bad?

- Well, the body doesn't react like this

unless it's handled a critical mass of fissile material

without the proper protection.

The UK HSA scanners have identified the isotope signature.

Our driver had handled 10 kilos plus of uranium.

- Son, this isn't dirty bomb territory.

This is four-yield, city-killer kind of stuff.

- Yeah, whatever they're building, it's big.

- What if they've already built it?

Is everything here that you need?

- Should be.

- My work has taught me about bombs,

but I could never build something like this.

That's why we need you.

Will you be ready?

Good.