Original subtitles

[man on radio] The unidentified aircraft

is now less than 50 miles off the coast.

It's still on a course which will bring it close to this city.

Is there time to intercept it with your rocket?

No, at the rate that ship is traveling

it'll be out of radar range before we can get off the ground.

Unless it lands.

Then ground defense will handle it, Bob.

Unless Mr. Steele thinks we can help.

Yes, Larry, I do.

It's the duty of my department to handle all matters

menacing world security, and you're one of my executives.

I realize that your work has usually been in the interplanetary zone.

In this case, I think you ought to take charge,

- both on land and in the air. - Very well.

I suppose the regular defense network has already been alerted.

Yes, they're standing by until we see what that ship's going to do.

Help me onto my flying suit, Bob.

I may have to get into action in a hurry.

[suspenseful music]

Prepare for landing.

[man on radio] The unidentified aircraft

has just disappeared from the radar screen

as it was passing over the Morongo Hills.

It must have landed somewhere in those hills.

Probably. I'll fly out there and try to find it.

Good, you can get there quicker than the ground forces.

[tense music]

[backpack whirring]

[suspenseful music]

They picked you up on radar. The whole country is looking for you.

That was to be expected.

But if we transfer our cargo quickly,

we can get away before they locate us.

Help him with the boxes.

[dramatic music]

[suspenseful music]

That seems to be all.

- Take off at once. - Yes, sir!

Get in the back with Shane.

[dramatic music]

[rocket rumbling]

[Larry] Calling Bob. Calling Bob.

Come in, Larry.

I just spotted their rocket taking off.

I can't possibly catch it

but I'm going to check out what happened and where it landed.

- [Bob] Good, keep us posted. - Okay.

[tense music]

[alarm beeping]

[thud]

Someone's on top!

[suspenseful music]

[gunshot]

What's happening there?

- Someone's on top of the truck - I'll shake him off!

[tires screeching]

[tires screeching]

He's still there!

Run under those trees and knock him off.

[tense music]

[gunshot]

[gunshots]

Shane, you and Narab will take the truck to the cave

and unload the supplies.

Roth and I will be there later to help you

as soon as we conclude our arrangements with Dr. Harding.

Yes, sir!

[engines revving]

This side door will take us right to his laboratory.

- Nobody will spot us. - Very well.

[suspenseful music]

What are you doing here?

I thought you were supposed to be delivering those plans--

Yeah, I know but we got a better deal here.

What-- what are you?

I am Marex, a native of the planet Mars.

Perhaps not quite a human being by earthly standards.

However, I can assure you that my people

are much further advanced in intelligence

and scientific achievements than you Earth men.

What-- what are you doing here?

For some time I have been in contact

with your assistants Roth and Shane,

making arrangements for a project I'm undertaking here.

I will need your technical assistance

and the facilities of your laboratory.

And why do you think I'm gonna help you?

Because I'm in a position to inform your government

that you've been selling atomic secrets

to an unfriendly foreign power.

The results of such an exposure

would be much more unpleasant for you

than the alternative I'm allowing.

What is this project you're planning?

The orbit of our planet Mars is so far from the sun that

climatic and atmospheric conditions there

are much inferior than those on Earth.

But in spite of these physical handicaps

my people have developed a means of correcting this situation.

[Harding] You mean you can change the orbit of the planet?

Exactly.

But, of course, to accomplish that

we must first clear the orbit of Earth's interference.

So my mission here is to plan an H-bomb explosion

sufficiently strong to send Earth spinning out into space

and leave room for my own planet.

That would mean the destruction of the world

and everyone on it!

That need not concern you if you are safe with us on Mars.

Unless you would prefer to await the event

in the Federal Penitentiary.

What would you expect me to do?

We will construct the Hydrogen Bomb

in a well-concealed cave which I have already selected.

The critical materials and the necessary electronic equipment

have already been brought down from Mars

and are now stored at my island base in the Pacific.

I'm moving them from there to the cave in my rocket ship.

Then why do you require my help?

Because we will need additional supplies

such as uranium, steel, and other structural materials.

We will also require the use of this laboratory

to assemble parts of the bomb.

Very well.

What comes first?

I will give you a list of what is required.

And while you're obtaining these items

I will go to the cave and get the basic construction started.

[somber music]

How long can you guys stay underwater?

Well, half an hour, perhaps a little longer.

The atmosphere on Mars is so thin

we've adapted ourselves to live on very little oxygen.

[water bubbling]

[ominous music]

[bubbling]

[stairs whirring]

[water splashing]

- Is that the last of it? - Yes, sir.

Good.

Now I have another assignment for you.

Dr. Harding has learned that a freight shipment of uranium

will be passing through this area today.

The train of local freight will stop at Peralta Junction

about 2:15.

You and Shane will take over there.

How many men will be on it?

I'm not sure, so you better make arrangements for additional help.

Now it won't be safe to stop to unload the uranium at the junction.

Take the train out into the hills

somewhere between the junction and Gomez Siding.

Find a good hiding place for the uranium.

We'll pick it up later with a truck.

Okay.

You wouldn't wanna be caught with that map on you.

Burn it.

I'll start lining things up.

Very well. I will be in the inner cave.

You can report to me by radio.

Right.

That does it, you're all set to go.

But that ruck may be miles away by now.

Not too far.

The signal from that radio sending unit

I planted in that truck is still coming in strong.

All I have to do is fly down the beam.

[tense music]

[suspenseful music]

So far so good. Let's see what the infrared light brings out.

Why, it's nothing but a railroad map!

Yes, with the section between Peralta Junction

and Gomez Siding underlined.

Which means what?

It could mean something's gonna happen there

so we gotta try to find out what.

We've got a lot of country to cover so we better split up the job.

You two go to the junction, check on things there.

I'll start at Gomez Siding and follow back up the line.

[train bell ringing]

[train rattling]

[tense music]

Larry!

Isn't that Bob on top of that freight car?

Yes, when we got here those men were stealing the train.

Bob jumped on it to try and stop them.

- Any way to stop that train? - No, my key is out.

They must have cut the wire after they slugged me.

There is the brake, can you fix it?

I can fix it but it'll take time.

- Maybe I can catch them in the car. - Not much chance.

The road only gets near the tracks in a few places.

Is that old tank working?

Yes, we just unloaded it for some farmer who's gonna make a track drive.

Maybe I can cut across country and stop that train?

You better try. If it keeps going

it'll crash it through the passenger train head on.

[suspenseful music]

[engine starting]

[tense music]

Tie him to that brake wheel.

Use those!

Isn't there any place to stop the passenger train?

There's one if I can only call it in time.

I almost got this fixed.

It's about time we stop and unload the stuff, isn't it?

How'd that get on our trail?

I don't know but they got on us somehow.

We're not gonna much luck unloading a car with uranium

with that thing chasing us.

Yeah, we better forget it. Make our getaway while we can.

[tense music]

[train horn blaring]

It's too late. The passenger train's already gone through the junction.

Only one more chance now.

If I can raise Gomez Siding they can derail the freight there.

[train rattling]

[train horn blaring]

We better jump!

[train crashing]

That was too close for comfort. I wonder what it was all about.

I don't know, there must be something on that train

they were planning to steal.

We'll check with the railroad company and find out.

[dramatic music]

[suspenseful music]

There is one more source of uranium

but it'll take time to make the necessary arrangements to get it.

Then start them at once.

We must have uranium for the primary reactor in our H-Bomb.

Everything must be ready

by the time the Earth reaches this position,

for that is point at which the explosion of our hydrogen bomb

will alter the Earth's rotation sufficiently

to send it spinning out in space.

Plus we must have the work completed

well before that date

to allow time for our escape to Mars.

I'm not looking forward to this trip to Mars.

It won't be dangerous, and you'll only be there a short time.

Our controlled explosions on Mars have already been set.

As soon as the Earth's orbit is clear

we'll move Mars in to occupy it,

then we can enjoy the same atmosphere and climate on Mars

that you now have here.

Our immediate problem is to find a safe place

to land the rocket load of electronic equipment

that I have to bring in from my island base.

That carload of refined uranium

was the only thing on the train of any unusual value.

That's probably what they were after.

- We still can't take any chances. - [phone ringing]

Larry Martin's office.

Yes, he's here. It's for you, Mr. Steele.

Steele speaking.

Yes?

Yes.

Very well.

They just picked up an unidentified aircraft coming in again.

It's still a long way off, you may have a chance to intercept it.

I'll fly out the rocket and try it.

If you intercept it, what will you do?

Try to follow it and find out where its base is.

[rockets whooshing]

[suspenseful music]

- Vehicle all set? - Yes, sir we got your orders.

Good.

- Hiya, Larry. We're all set. - Good, let's go.

- Ready? - Any time!

- Fire pilot jet. - Fire pilot jet.

[whirring]

- Fire main jets. - Fire main jets.

[rumbling]

Calling Larry Martin's office.

Larry Martin, calling Mr. Steele.

Hey, Larry, where are you?

We've just taken off.

Is that other ship still on radar?

We lost them behind the mountains back of Lake Emerald.

It may have landed there, you better check them.

Yes, sir.

Heading forward to Lake Emerald.

[suspenseful music]

Here it comes.

[aircraft scraping]

Get this unloaded as fast as you can.

I heard on the radio that there's another rocket searching for me.

Okay, we'll dump it all out here and move it down to the boat later.

[rumbling]

I can't see any sign of them

but you could hide a squadron under those trees.

We'll just cruise around a while, see if we can pick up something.

Right.

[whirring]

[suspenseful music]

- That's all, I'm taking off at once. - Okay.

[engines whirring]

There he is. They're just taking off.

We take after 'em?

Yes, but don't follow him too close.

All we wanna do is find out where he's going.

- We're gaining on him. - Good!

[tense music]

[explosion booming]

[explosion booming]

- We under control? - Just barely.

Fuel pressure is dropping. Must've cracked a line.

We can't keep up with him now

and we can't maneuver to get a shot at him.

- Let's head back to field. - Okay.

So now our next move is try to find out

what that rocket ship was doing up there in the lake.

You didn't see any sign of a truck this time, did you?

No. There were no roads near the place where it landed,

but it was close to the lake.

If they unloaded anything, it could be picked up by boat.

There are a lot of boats on that lake.

Yes, and we gotta check them all, so let's go.

You two take one side of the lake,

- I'll take the other. - Right.

[somber music]

- That's a load. - Okay, take it away.

We'll wait here till you get back.

Right.

[engine revving]

[suspenseful music]

Hey.

There's somebody snooping around our stuff.

[gunshot]

[tense music]

[gunshots]

[gunshots]

[gunshots]

[gunshot]

[gunshot]

[gunshot]

[gunshot]

[engine revving]

[engine revving]

[tense music]

[gunshot]

[tense music]

[boat crashing]

Well, that's all we salvaged from the wreck of the speedboat.

What is it?

Well it's part of an electronic device

but I've never seen one just like it before.

Neither have I.

But it's certainly for some illegal project

or they wouldn't be smuggling it by rocket ship.

That's a reasonable guess but it still doesn't tell us just what it is.

No but I think I know who can tell us.

Dr. Harding.

Yes, he's done a lot of research in electronics,

but he never seemed to be willing to work with anyone else.

I know he has reputation for being very secretive

but I have the authority to demand his cooperation.

Let's box this up and take it out to him.

[suspenseful music]

Well, we have enough material here to keep going for a while.

Fortunately, my island base can replace the parts that were lost.

How about getting it here?

They'll be watching for the rocket from now on.

The country which was trying to buy my atomic power plant designs

is still on the market.

They would probably let us use one of their submarines,

if we were willing to give them the designs.

Why not? They'll never get a chance to use 'em.

In a short while, we'll blast Earth off its orbit

and send it spinning out through space

so that our own planet Mars can take its place.

All that matters now is to complete the H-bomb on time.

How long would it take this unfriendly ally

to deliver our shipment?

Mm, judging from my past dealings with them,

their submarine could deliver the material

in the harbor in a week.

Good. Then make the necessary arrangements at once.

Roth, go to the harbor.

Charter a suitable boat for one week from tonight.

Okay.

Calling X71.

[suspenseful music]

Hey!

There go the men who picked up that stuff from the rocket.

[tires screeching]

You gonna arrest them?

After we find out where they're going.

[suspenseful music]

- What can I do for ya? - We wanna charter a boat.

Just an open job, about 25 feet, but fast.

- When do you want it? - One week from tonight.

Well, I don't usually charter my small boats for night trips.

[Roth] We won't be going out in the harbor.

We won't need it for more than a couple of hours.

[Man] I don't know, I'll show you what I've got.

You're under arrest. Search them, Bob.

[tense music]

[engine revving]

Ever see those two before?

No, but I'd sure like to see 'em again.

I'm afraid they won't be back here.

But we do know they got business in the harbor

a week from tonight.

And we'll be on hand to see what takes place.

[engine rumbling]

Nothing in sight yet.

No, but we better keep looking.

It's about time that sub showed up, isn't it?

Yeah, but you won't see it.

They'll put the stuff onto buoys.

[suspenseful music]

[water splashing]

[clanking]

Hey, the buoy's out there.

There's another one behind us.

Hey, what's that boat doing?

They're bringing up something out of the water!

Maybe we'd better check on 'em.

Hey, there's a boat heading this way.

We won't have time to pick up that other buoy. Sink it!

[gunshots]

[gunshots]

I want that buoy. Stand by to pick it up.

Good work! Now let's get after that gang.

Stop 'em!

[gunshots]

[gunshot]

[gunshots]

[gunshots]

[gunshots]

[gunshot]

[gunshot]

Throw that net over in front of 'em!

[tense music]

[water splashing]

[engine stops]

That net faulted our prop up good.

They're landing at that old cannery wharf.

If we can clear that prop and get to my car in time

we can still catch them.

Let's get to work.

[suspenseful music]

Drive toward the cannery wharf.

If you see any sign of 'em, call me on the radio.

Right.

[engine starting]

[gunshot]

[gunshots]

[gunshots]

[tires screeching]

[gunshot]

[engine revving]

Calling Larry, calling Larry.

Come in, Bob.

They're heading north along Front Street

in a black panel truck. You want me to follow them?

- No I'll take over now. - Okay.

[suspenseful music]

[rockets whooshing]

Pull over and stop.

[tense music]

[truck thudding]

[loud crashing]

[rockets whooshing]

Did you see any sign of the ship that dropped these buoys?

No, there was nothing else inside.

They may have been brought in by submarine.

It's possible.

We'll alert all patrol to keep a constant watch in this area.

We're obviously up against a very powerful enemy.

We must prevent them from completing their project

whatever it is.

Yes, that's the big question, what are they trying to do?

Well, all these instruments

and the one we picked up from the rocket shipment

are all electronic apparatus of some kind.

It's my guess that some enemy power

is preparing to build A-bombs right here in this country.

And then use them here?

Afraid that may be it.

We must use every means we can to stop them.

For one thing, the authorities should check up on all the supplies

and material and equipment in this country

that might be used for atomic devices.

All such supplies are under strict government control already.

We'll ask the government authorities

to recheck their security measures.

Let me know if you find anything suspicious.

I will, Larry.

[suspenseful music]

Yes, Ross has already removed the uranium from the mine.

All you have to do is to meet him with the plan

at the usual place.

Are you sure you can trust Ross and the men with the plane?

I don't like letting strangers in on our projects.

They don't know anything about your plan

to blast Earth out of its orbit so Mars can take its place.

They just think they're furnishing me with uranium

for my own private use, as they've done before.

Very well.

All right, Mr. Steele, we leave right now.

It looks like the security controls

aren't as tight as Mr. Steele thought they were.

The Kingpin mine reports a shipment

of high grade uranium ore stolen.

Stolen from the mine?

Yes, apparently it was loaded on the pack horses

and taken out across the desert.

They tried to follow the tracks but they lost it in rocky ground.

So we gotta make like a couple of Indians and trail 'em.

Do I have to ride a horse?

No, but you may have to do some scrambling around on foot.

[suspenseful music]

[hooves clattering]

You go on down this road.

I'll fly over those hills in the west.

- We'll keep in touch by radio. - Right.

[engine revving]

[rockets whooshing]

[tense music]

[hooves clattering]

[rockets whooshing]

[airplane rumbling]

[plane rumbling overhead]

Okay, boys, there they are.

[tires screeching]

[hooves clattering]

[engines shutting off]

[hooves clattering]

[suspenseful music]

[rockets whooshing]

Calling Bob, come in, Bob.

- Come in, Larry. - I've spotted them.

They're loading the stuff on a plane on a dry lake

about a mile west of where you are now.

Drive cross country until I meet you.

Right.

[tense music]

They're just over the ridge, about a dozen of 'em.

- That's a large order. - Yeah, we can't capture them all.

So we'll try to drive off the riders and grab the plane.

We'll get in as close as we can before we open up on 'em.

Right. I brought these along.

Good! Let's go.

[somber music]

- Let's let 'em have it. - Right!

[gunshots]

Dr. Harding promised there'll be no interference.

Shut up, will ya?

You don't think this is our idea?

Now look, we're nearly loaded.

I'll hold them off until you can get this thing out of here.

You'd better. All right, hurry it up.

[gunshots]

[gunshots]

[gunshots]

[gunshots]

[gunshots]

Turn those pack horses loose! We don't need 'em anymore.

Run 'em across the lake towards 'em. They'll cover you.

[gunshots]

[rider whistling]

[hooves clattering]

[men yelling]

[gunshots]

[gunshots]

We're just about loaded.

[gunshots]

- Take off! - Take off as fast as you can!

[gunshot]

- Hey, they're taking off. - These will stop 'em.

[explosion booming]

That did it!

Yeah, there won't be much fight left in that crew now.

[Larry] Calling Sue, calling Sue.

Yes, Larry, come in?

We recovered the uranium.

They were transporting it from the pack horses to a plane.

We disabled the plane and have captured the two men in it.

But the others escaped.

Do you have any idea who they were?

[Larry] Yes. One of the prisoners talked.

The leader was a mine foreman named Ross.

I don't expect him to go back to the mine now

but he had an appointment to meet two pay-off men there this afternoon.

So I'm going to the mine and look for them.

- Is Mr. Steele still there? - Yes.

Ask him to phone the mine superintendent

and arrange for me to get in.

I'll take care of it right away.

He'll make all the arrangements. Good luck.

[suspenseful music]

Ross is supposed to be working down the lower level.

There must be a shaft somewhere ahead.

Hold it!

I thought you folks might show up here.

- [gunshot] - [tense music]

[punch thuds]

[gunshot]

[thud]

[tense music]

[cart rumbling]

[cart crashing]

This is very serious.

We must have uranium for the construction of our H-bomb.

Is there another source or supply?

I know where I can obtain some but the cost would be very high.

And since we've lost the money we paid to Ross

I'm afraid we can't afford them.

That isn't any problem.

Many of your banks are loaded with cash.

They're loaded with guards too.

Your part will be very minor and perfectly safe.

On Mars, we long ago learned to use mechanical devices

for difficult or dangerous work.

You mean you could build a machine to rob a bank?

That's what it amounts to.

Only you would call it a robot.

A mechanical man whose movements we can control

from a panel here in this laboratory.

Do we have the necessary material here to build one?

We can buy the necessary electronic parts

and any sheet metal shop can construct the body for us.

Well, we will need...

All right, we'll be there, thanks.

Hey, Bob.

It looks like Mr. Steele's campaign

to lure anybody handling atomic supplies is paying off.

That was a dealer in electronic equipment

who reports a couple of strangers asking for some special tools.

- Did he give it to 'em? - Not yet.

He said he'd have the stuff for them in an hour.

That'll give us time to get on there and look them over.

[suspenseful music]

Right on the minute.

That's the store just ahead, we'll wait here.

There they are.

- Our two old pals. - [Larry] Right.

This is our chance to follow them to their headquarters.

[engine starts]

- You suppose that's their hideout? - Could be.

[suspenseful music]

Looks like they're getting ready to load something in the car.

Let's get behind it!

Hey, it looks like a robot.

Hey, it's Martin!

- [gunshots] - [tense music]

[gunshot]

[gunshots]

[gunshots]

Get the car started, I'll keep 'em busy.

[gunshots]

- [engine starts] - [gun clicks]

[gunshots]

[tires screeching]

Shall we follow 'em?

No chance. They'll be gone before we can get to a car.

At least we know they have a robot

which they're probably going to use for some kind of dirty work.

We'll tell the authorities to be on the lookout for it.

If we can locate whoever operates it by remote control,

we'll have the men we're looking for.

Calling M, calling M.

- [Marex] Yes, Roth? - We're all set.

Very well, I'll take over from here.

[suspenseful music]

[flame hissing]

[flame hissing]

[flame hissing]

[dramatic music]

[gunshots]

[flame hissing]

[alarm ringing]

The cops will be here in a minute, hurry up!

[Dispatcher] Calling Car 16, calling car 1-6.

Go to the Ferndale Bank. Alarm ringing.

Get going!

[engine revving]

[alarm ringing]

They're all right now.

I'll see if I can pick it up. That robot's in action already.

They just used it to rob the Ferndale Bank.

They're robbing banks too?

Yes, Sue, it's the same gang all right.

The police traced the getaway car through town

but they lost 'em somewhere in the Morongo Hills.

Why, that's where that rocket landed the first time.

Right.

So there's a chance they might have headed for the same cave.

I'm going to have a look.

Be careful.

[dramatic music]

You sure that box is water tight?

Absolutely.

I'll radio Marex that you've arrived safely.

You better wait to see if he has any further orders.

Okay.

[somber music]

[water splashing]

[water bubbling]

[intriguing music]

[water bubbling]

[stairs whirring]

[Larry] Get your hands up.

Turn around.

Calling Marex, calling Marex.

[Marex] Come in, Narab.

Roth and Shane got here with the money all right,

but someone has just captured them at the outer cave.

- Is the robot still there? - Yes.

Then I'll take over.

Go over that wall.

[suspenseful music]

- [gunshot] - [tense music]

[gunshot]

[clanking]

[clank]

[clank]

[clank]

[clank]

Now to finish him.

[Harding] There's an ax on the box right behind him.

[Marex] Yeah, that'll do it.

[ominous music]

[axe thudding]

He smashed the controls on the robot.

Calling Bob, calling Bob.

Come in, Larry.

[Larry] The gang came to the cave all right.

They got away but I've got the robot

and the money must be here somewhere.

Better come out and help me look for it.

- You heard that? - Yes.

You must stop him from finding that trap door.

[suspenseful music]

They may have hidden it in the shaft.

There's sure nowhere else around here.

I'm going in to find out.

[somber music]

Any luck?

Not yet, it's pretty dark down here.

[panting] I'll try again.

[dramatic music]

What's the matter?

Help me up.

[suspenseful music]

[Bob] But how could anyone else have gotten in there?

[Larry] There must be another water entrance from another cave

but it was too dark to see.

We'll pick up a diving helmet

and underwater light and try again.

We'll take the robot with us.

When we examine it we might find some clue

to the remote control operator who's been working it.

I heard all that.

We must protect that tunnel entrance at all costs.

- I'll come out and help you. - [Narab] Yes, sir.

Don't you think we should construct our bomb

in some other location?

No.

That cave is at the exact point

where my atomic explosion will be most effective

in deflecting the Earth's rotation

forcing it out of its orbit

so that my planet Mars can take its place.

But if Larry Martin investigates that underwater tunnel--

Don't worry about Larry Martin.

We now have a sure method of eliminating him.

The robot is in his laboratory.

Tonight you and Roth will break in there and then repair it.

Then stand by the controls.

And the next time Martin enters his laboratory...

send the robot into action.

And that should solve our problem.

Shane, you will take me out to the cave now.

We must be on guard in case Martin returns there

before you have a chance to get the robot working again.

Well, everything seems to be in perfect working order.

Larry Martin is due for a very unpleasant surprise tomorrow.

[suspenseful music]

- Morning, Sue. - Morning.

- Hiya, Bob. - Hi.

Everything ready?

Yes, there's the diving helmet and the underwater line.

[Larry] Seems all right. You got plenty of oxygen?

[Bob] I think so, we will take along an extra tank.

[ominous music]

Look out!

[tense music]

[gunshots]

[gunshot]

[wood breaking]

[Larry grunting]

[ominous music]

Throw the main switch!

[electricity fizzing]

We were lucky that time but I'm not taking any more chances.

While Bob and I are out at the cave

you take that thing apart, in a lot of little pieces.

Right.

It's no use. I'll warn Marex.

Calling Marex. Calling Marex.

- [Marex] Come in, Harding. - The Robot attack failed.

Larry Martin disabled it.

That means Martin will be coming to search this cave at any time.

Tell Roth and Shane to come out here immediately.

[Harding] Yes, sir.

Do we have any explosives that can be detonated under water?

Yes. Some of our small TNT bombs would do.

Then get one ready at once.

We must set up a booby trap in the shed.

Yes, sir.

[tense music]

Let's rig this light.

[suspenseful music]

[mask hissing]

Put 'em up.

- [gunshot] - [tense music]

[gunshots]

[tense music]

[explosion booming]

- [gunshot] - [gun clicks]

[gun clicks]

Looks like that blast got Martin, let's go.

[Bob] What happened down there?

[Larry] It must've been a booby trap.

I fell in something and everything went black.

[Bob] Did you find anything down there?

No. If there's any other entrance, it's too well hidden to find.

I'm sure the money is not there.

We'll try to get a map of this mine from the former owner.

If it shows any working back of here we'll do more investigating.

[Bob] Okay.

But we probably scared 'em out of ever using this place again.

Calling Dr. Harding.

Calling Dr. Harding.

Come in, Marex.

[Marex] Larry Martin has escaped our trap

but he's left without discovering anything.

- And you still have the money? - Yes.

So you can make your arrangements for purchasing the uranium at once.

In the meantime we must have the other materials

for the nuclear reactor brought in from the island base.

Do you think it's safe to try that again so soon?

Well, we must risk it.

We have to have the bomb completed

by the time the Earth is at that point in its orbit

from which it can be most easily deflected out into space.

Very well.

Do you want me to arrange for the use of the submarine again?

Yes, but try to find a better method

of bringing the cargo ashore this time.

The material you'll be handling

is radioactive enough to cause considerable electrical disturbance.

So get it into your lead safe as quickly as possible.

Yes, sir.

Calling X71.

Calling X71.

Had any trouble?

Not a bit. I just lowered the nets and the Dyer

from the submarine and put the stuff in.

Is this all of it?

No, I'll get the rest tomorrow night.

Okay. Help us get this stuff in the truck.

[suspenseful music]

Just after one o'clock this morning there was violent interference

with all radioactivity in this area,

from the waterfront to the east side of town.

It was undoubtedly caused by some highly radioactive material

being moved to that area.

This does not necessarily tie in with that gang

you've been having trouble with.

But it does indicate illegal traffic in some atomic material.

We know that gang's been working on some sort of atomic project.

Yes, and we know they've been trying to smuggle material into this country

so it adds up.

I'll fly over the harbor area with a radioactivity detector

and try to locate the source of that interference.

- Help with the suit, Bob. - Fine.

- Good luck, Larry. - Thanks.

Detector's in that drawer, Sue.

[dramatic music]

[rockets whooshing]

Calling Bob. Calling Bob.

Yes, Larry?

[Larry] I picked up a strong reading right over the middle of the harbor.

There are no ships anywhere near.

- It's that submarine again. - That's my guess.

So I want you to charter a speedboat,

get an underwater detector and some small depth charges.

[Bob] Right. I'll meet you here at the lab when you get back.

Everything set for tonight.

The gear will all be put in the boat by dark.

- Good. - Can I go with you this time?

I'd rather have you patrol the waterfront area with a Geiger counter

in case they get the stuff ashore before we locate it.

- Well, all right. - Let's go.

[suspenseful music]

Shall I hook up the detector now?

I'll do it on the way out. Let's go.

[engine revving]

We're about there.

I picked up something.

It's moving.

Change course to 165!

165.

[tense music]

- Submerge to 100 feet. - Aye, aye, sir.

Reduce to quarter speed.

We're right over 'em. Hold her steady.

[engine rumbling]

[explosion booming]

Submerge another 100 feet!

Missed it. Here goes another.

[explosion booming]

That got him!

- Let's go back and pick up Sue. - Right.

What's she doing here?

She must've picked up that stuff on this Geiger counter.

Take her up there and tie her up.

I'll make sure nobody else is around.

[tense music]

That's the last one.

Hey.

Let's get out of sight.

Hey, what was that?

Let's take a look.

Hold it!

Search 'em.

[tense music]

[grunting]

[water splashing]

[splashing]

[tense music]

[engine revving]

[somber music]

It's some kind of electronic device with radioactive material in it.

It's plenty hot.

We're gonna take it all apart

and see if we can find any clue to the maker

and what it's supposed to be used for.

You couldn't find any trace in the rest of the cargo?

No, it's disappeared completely.

But if they try to move it again we'll be ready for them.

I have men with Geiger counters planted on all the main highways.

If anything radioactive is moved out of town

- we'll pick it up. - That's a sensible plan.

You know that gang are using atomic material,

so you have a good chance of getting on that trail.

Check with you later.

So all the equipment is safe in my vault.

Except, of course, the drum which was left on the dock.

Larry Martin is sure to have picked it up by now.

That is very serious loss and will be difficult to replace.

But in the meantime we can go into the other phases on our project.

Have you arranged to get a supply of uranium?

I've made arrangements for Roth to take the place of the guard

on a truckload of uranium

leaving the chemical warehouse this afternoon.

He'll manage to have Shane with him.

Good.

Once we get that uranium

we can go into the final stages on construction of the bomb.

[suspenseful music]

Stay here. I'll signal you when it's clear.

Okay.

I'm your new guard.

Sorry I didn't get here in time to check the load.

Well it looks okay to me, but you can give it a quick count.

All right.

You go ahead and get your engine warmed up.

[engine starting]

[tense music]

This is a stick up. Pull over.

Get out and start walking.

Good. We'll get right after it.

Our spotters picked up a radioactive truck

heading east on Highway 40 just out of Kelson.

Bob, take your car and get on that highway.

- Right. - Sue, you stay here.

And both of you keep your radios open.

I'll let you know if I need help.

[rockets whooshing]

[dramatic music]

Calling Bob and Sue. Calling Bob and Sue.

- [Bob] Yes, Larry? - [Sue] Come in, Larry.

I picked up a hot reaction from a truck going east on Highway 40

almost to the foot of the pass.

- Where are you, Bob? - Just a few miles behind it.

Then catch up with us as soon as you can.

I'm going to board the truck.

I'll leave my radio open so you can both hear what happens.

- Okay. - Right.

[tense music]

- [thudding] - Stay where you are!

Hey, Roth!

Larry Martin just landed in here.

Watch him close. I'll come back and help you.

[suspenseful music]

- What do we do with him? - [Roth] Tie him up.

We'll go on till we get to a phone, we'll call the boss for orders.

[engine revving]

[tense music]

Hey, Shane.

There's a Roadster back there looks like he's tailing us.

- Take a look. - [Shane] Okay.

[gunshot]

[gunshots]

[gunshots]

[gunshot]

[gunshot]

[tires screeching]

[explosion booming]

You can relax now, Roth. I stopped him.

Good.

There ought to be a phone booth at that gas station ahead.

I'll make a call.

He says to use Martin to get into his lab

then we can grab that electronic gadget

- they got from us. - Good idea.

[whispering] Did you hear that, Sue?

Yes.

[Larry] There's a revolver in the second drawer of my desk.

- Can you use it? - Of course.

I'll be ready.

Just walk right on in and don't make any brakes.

There are two guns behind ya.

[suspenseful music]

Stay here till we see it's okay.

Go on.

[gunshot]

Keep him covered. Here's what we want.

[clanging]

[tense music]

- [groaning] - [grunting]

[glass breaking]

[electricity buzzing]

Now that fixes him. Get that instrument and let's go.

[somber music]

Larry, I thought they'd killed you.

- Have they gone? - Yes.

The metal in my suit must've ground a part of the charge.

And they took that electronic device with 'em.

- Is that the last of it? - That's it.

You take it and continue your work.

- I'm going to Dr. Harding. - Yes, sir.

[suspenseful music]

So now we have everything we need to complete the H-bomb

except the detonator which is still on the island.

That's radioactive too, isn't it?

Of course, why?

Well, it's obvious that Larry Martin

has been tracing our recent shipments

with radioactive detectors.

By now he undoubtedly has a screen

which will be very difficult to penetrate.

Yes, you're right.

It would be too risky to move it through town.

We'll have to use the spaceship.

Well, that isn't safe either as long as Martin's rocket's in business.

[Marex] Then we'll eliminate it.

Well, that won't be easy. It's always guarded.

We can bomb it from our own rocket before it has time to take off.

Can you secure some aerial bombs?

Yes, I have several experimental ones here.

A new type, small but very powerful.

Then the only problem is getting 'em to the rocket ship.

I've arranged for a foreign submarine

to pick up one of my atomic power units

in the east end of the bay tomorrow.

I can have them take the bombs to your island base.

Good.

We must create those bombs and haul 'em out of here at once.

Then arrange for a boat for tomorrow.

Okay, but you wanna get rid of that truck.

- It's sure hot now. - Very well.

Arrange to get another one.

But take the old one away from here.

Okay.

Go to town and pick up another truck.

I'll meet you out in the canyon, we'll transfer this stuff

and we'll leave the old truck there.

Right.

I've marked all the points

where we picked up radioactivity readings

on all the trucks.

They all follow the same general route.

Yes, all the trails end up in the west side of town.

That's not much help, it'd take too took long

to search all the buildings in that area.

Sure, but that truck is easy to spot from here.

And if it's still anywhere around there, I'll pick it up.

You better wait till I catch up to you before you tackle 'em again.

I'm not going to try to capture 'em this time.

I'm going to try to work it

so they'll give me a lead to their headquarters.

This is a portable radio transmitter,

the kind they use on life rafts.

It puts out a constant signal,

one that can be picked up in a directional receiver

anywhere within 100 miles.

If I find that truck, I'll plant this transmitter on it.

You stay here until I get back

then we'll start using the small receiver.

[suspenseful music]

[rockets whooshing]

[alarm beeping]

[tense music]

[suspenseful music]

Hey, there's Martin.

[gunshot]

[gunshot]

[gunshot]

[gunshot]

[gunshots]

[gunshots]

[gunshots]

[gunshots]

Hey, if he hits one of these bombs...

Yeah, you're right.

Get the engine started, I'll keep him covered.

[gunshots]

[gunshot]

[gunshot]

- [engine starting] - [gunshots]

[rockets whooshing]

I was glad they ran for it.

I'm just hoping they take that truck to the headquarters

so we can nail the whole gang.

The direction the signal is coming in strong.

The truck's due west of here now.

Stand by the radio, Sue, we'll keep you posted.

Let's go.

Take the next turn right.

Looks like we're heading for the water front.

Hey!

What's this?

It's a radio signal transmitter.

No wonder Martin let us get away so easy.

He's tailing us.

Take the truck and get going, anywhere to lead him away from here.

I'll handle the boat.

[suspenseful music]

The signal was almost at maximum but it's fading now.

They must have stopped for a while and started up again.

Could be.

- We'll have to turn-- - Hey! That looks like one of 'em now.

[boat engine revving]

[gunshots]

[gunshots]

- There's another boat. - Let's take it.

[tense music]

[gunshot]

[gunshot]

[gunshot]

[gunshot]

[gunshot]

[gunshot]

[gunshot]

[gun clicks]

Put me alongside it!

[tense music]

[explosion booming]

I just can't understand it.

Why would anyone be taking bombs to a submarine?

I can't answer that.

Up until now they've only been interested

in getting hold of material for some kind of atomic project.

- Are you sure of that? - Reasonably so.

Everything we caught 'em with have been of atomic nature.

Let's recap a bit.

First there was that shipment of uranium on the freight train.

As you know, they captured the train.

Larry!

Isn't that Bob on top of that freight car?

Yes, when we got here, those men were stealing the train.

Bob jumped on it and tried to stop them.

- Any way to stop that train? - No, my key's out.

They must've cut the wire after they slugged me.

There's the brake, can you fix it?

I can fix it but it'll take time.

- Maybe I can catch 'em in the car. - Not much chance.

The road only gets near the tracks in a few places.

Is that old tank working?

Yes, we just unloaded it for some farmer who's gonna make a tractor out of it.

Maybe I can cut across country and stop that train.

You better try. If it keeps going

it'll crash it through a passenger train head on.

[suspenseful music]

[engine revving]

Tie him to that brake wheel!

Use those!

Isn't there any place to stop the passenger train?

There's one if I can only call in time.

I've almost got this fixed.

About time we stop and unload this stuff, isn't it?

[engine rumbling]

How'd that get on our trail?

I don't know but they've got on us somehow.

We're not gonna have much luck unloading that car of uranium

with that thing chasing us.

Yeah, we better forget it. Make our getaway while we can.

[train rattling]

It's too late.

The passenger train's already gone through the junction.

Only one more chance now.

If I can raise Gomez Siding they can derail the freight there.

[train rattling]

[engine rumbling]

[train horn blaring]

We'd better jump!

[train crashing]

Then there was that electronic apparatus

which could also be used for atomic work.

You mean that equipment they brought in the rocket?

Yes. They landed it in the mountains

and brought it down to Lincoln Boats.

I located their dock.

[suspenseful music]

Hey!

There's somebody snooping around our stuff.

[gunshot]

[gunshots]

[gunshots]

[gunshots]

[gunshots]

[gunshot]

[gunshot]

[gunshots]

[gunshot]

[engine starting]

[engine rumbling]

[tense music]

[gunshots]

[boat splashing]

Yes, you're right.

All the evidence points to some illegal atomic projects.

- But we still... - [phone ringing]

Larry Martin's office.

For you, Mr. Steele.

Yes?

Very well, I'll be right over.

Some officials from Washington are waiting for me in my office.

We'll continue this discussion at a later time.

All right. In the meantime we'll keep trying to find out what they're doing.

Goodbye.

[suspenseful music]

Larry Martin is sure to intercept our rocket

if we try to bring it in.

But we must.

We have to get that detonator from the island

to complete our hydrogen bomb.

Martin's rocket must be destroyed.

It'll be a tough job, it's well guarded.

That ray gun you developed,

would one of its shells penetrate the hull of Martin's rocket?

Yes, it would go through the hull and burst inside.

Then that's our answer.

When Martin takes off to intercept our rocket

he will have to fly over Eagle Peak.

You and Shane set the gas gun up there,

blast him when he comes over.

Okay, when will your rocket be coming through?

As soon as you get the canon set up

- I'll radio them to start. - Okay.

[rockets whooshing]

[suspenseful music]

What's up now, Larry?

That mysterious rocket is headed this way again.

I've ordered Dick to take off my ship and I'll fly aboard it.

Be careful!

[rockets whooshing]

[tense music]

- How are you doing, Dick? - Everything's fine.

- Let 'em have it! - [beam hissing]

What's that!?!

A fire bomb! Or gas!

[tense music]

[gas hissing]

I still don't know what hit us.

It was a gas shell.

But we'll be all right if we keep these helmets on

until it clears out.

Here it comes.

[man on radio] Central Communications calling Larry Martin.

This is Larry Martin, come in.

[Man] The unidentified aircraft has gone off our radar screen.

- Did it land? - [Man] We can't tell.

It was a long way out when it disappeared.

All right, we'll return to base.

- That's it, Dick, let's head back. - Right.

[suspenseful music]

Here's the detonator.

Elah said he'd stay in the rocket.

Is the rocket well hidden?

Yes, we covered it branches. Nobody can spot it from the air.

Good. Nothing can stop us now.

It'll only take a few hours to attach this detonator

then we can all take off for Mars.

Are you sure the rocket can carry all of us

and your men from the island too?

Oh, yes. Now, get Dr. Harding.

He's going to help me make the final adjustments on the bomb.

Okay.

[suspenseful music]

[water splashing]

It's putting out a strong transmission wave.

But that means it's televising a picture of this room

right to its control board.

Which is exactly what we want.

My indicator will keep me on the beam

and I'll fly right along at the gang's headquarters.

And if they have their receivers on

they'd be waiting for you with a warm welcome.

That's a chance we'll have to take.

Stand by the radio, I'll keep you posted.

[rockets whooshing]

[somber music]

Calling Bob. Calling Bob.

Yes, Larry?

[Larry] I'm at the end of the beam and it's Dr. Harding's house.

What, you mean Dr. Harding is one of that gang?

It looks like it.

The robot control panel is certainly in his house.

But it'll take some strong evidence to convict a man like Dr. Harding.

Finding the control panel at his house ought to be enough.

Not unless we prove his panel actually controls the robot.

So load that robot in the car

and bring it out here as fast as you can.

I'm going inside now but I'll keep my radio open

so that you'll know what's going on.

Right.

[suspenseful music]

[papers rustling]

I'll be ready in a minute.

[tense music]

What are these men doing here, Dr. Harding?

They're, uh, trying to steal some of my designs.

They forced me to put them in this briefcase.

Turn around.

Stay where you are.

I came to investigate your robot control panel, Dr. Harding.

[glass shattering]

[Roth] Good work, Doc! Let's get out of here.

Got any diving gear?

You'll need to go in through that water tunnel.

[Harding] Yes, in that cabinet, there are two of 'em there.

[suspenseful music]

- What happened? - They knocked me out.

Did you hear anything after that?

Yeah, just before they left they were talking about taking some diving gear

to go through the underwater tunnel.

Then there is a tunnel out of that shaft in the cave.

- There must be, we better-- - Wait a minute.

You've got the robot in the car.

We've got the control panel here.

We'll take it along and let the robot do the fighting for us.

Swell.

Hey, we'll take that diving gear too.

[tense music]

Stop just before you get in the cave and we'll set up the control panel.

Right.

Better stand guard outside until we finish.

Okay.

[loud breathing]

[water splashing]

- [switch clicking] - [robot whirring]

All set?

There he goes.

[suspenseful music]

[ominous music]

[gunshots]

[gunshot]

[gunshot]

We sure got 'em on the run.

[gunshots]

[gun clicks]

[ominous music]

- [clank] - [fire hissing]

[screaming]

[fire hissing]

[screaming]

That's that.

We'll leave the robot there and try that underwater tunnel.

Let's get the diving gear.

[suspenseful music]

Turn on the air.

[Bob] We couldn't find anything down there the last time.

[Larry] Maybe I didn't look close enough.

There may be some kind of a concealed door.

It's Larry Martin!

[loud breathing]

[bubbling]

[suspenseful music]

Take care of 'em.

[tense music]

[suspenseful music]

[ticking]

There, everything's completed.

The bomb will explode in two hours.

By that time we'll be well on our way to Mars.

[water splashing]

What did you ran into down there?

[Larry] There's a shaft back end of that tunnel.

Somebody came down and cut the air hose.

[Bob] They must have a hideout in there.

What can we do about it?

We can keep 'em in there until we get help.

Go out in the car and radio Mr. Steele

to send some troops with underwater gear.

We're trapped!

No, we're not.

- Where are those gas bombs? - They're right over there, sir.

Get them.

We'll saturate that cave with gas.

It won't hurt us and this diving gear will protect you.

No, no we can't risk it. We might be delayed too long.

- We have no other choice. - We do.

We can shut off that bomb and give ourselves up.

Do you think I'm going to abandon our whole project...

just when we're on the verge of success?

My life means to more to me than your project.

I'll shut off that bomb myself!

[tense music]

[gunshot]

[somber music]

It'll be another hour before they get here.

Well, all we can do is wait.

[ominous music]

[bomb clattering]

[gas hissing]

[coughing]

[gunshot]

[tense music]

[gunshots]

[gunshots]

[gunshot]

[gunshot]

[gunshot]

[gunshot]

Get the car started!

[gunshot]

[gunshot]

[coughing]

- Maybe we can catch 'em. - I better fly after them.

[rockets whooshing]

[tense music]

- Prepare to take off at once. - Yes, sir.

[suspenseful music]

[rockets rumbling]

Calling Sue. Calling Sue.

[Sue] Come in, Larry.

That rocket just took off in the mountains

back of Lake Emerald.

Tell Dick to take off with my rocket at once.

I'll board it in the air.

Right.

Calling the rocket, Larry Martin's rocket.

[rocket rumbling]

[tense music]

[hatch closing]

How are you, Larry? Where do we go now?

Just hold her as she goes until I pick up that rocket on radar.

Right.

[rocket whirring]

There he is!

Firing ray gun!

- [explosion booming] - [electricity crackling]

That did it, he's going down.

Swell! Are we following?

That's rough country to land in.

I'll fly down. You take this ship back to the field.

[Dick] Yes, sir.

[electricity crackling]

[tense music]

[electricity crackling]

[rockets whooshing]

[somber music]

How about the others?

I think they're all dead.

You're in pretty bad shape yourself.

Take it easy and I'll call for an ambulance.

No! First you must stop the bomb.

What bomb?

In the back cave through the water tunnel.

It'll blow up soon, destroy the whole world.

How can I get in there?

Turn the right knob at the left wall.

Just ahead of the trap door.

Hurry!

[tense music]

[rockets whooshing]

[ticking]

[tense music]

[ticking]

[water splashing]

[ticking]

[dramatic music]

[ticking]

That zombie has a fair chance of recovery

but he's still too weak to talk.

Then we'll have to wait before we find out what this is all about.

Not entirely.

The papers we found in Harding's laboratory

explain why they were building the hydrogen bomb.

Its explosion was intended to deflect the rotation of the Earth enough

to send it out of its orbit and spinning off into space!

Those zombies must've been as crazy as they looked.

It may sound ridiculous but it's theoretically possible.

It's certainly lucky you managed to stop them in time.

Yeah, we're safe now for the time being.

But there are undoubtedly more of those power-mad creatures

loose in other planets,

so it'll take constant vigilance on our part

to ensure the safety of this world.

[triumphant music]