07x08 - Cold w*r

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EXT. NORTH POLE, DAY, 1983

The camera zooms over the ice floes before diving into the water.

EXT. SEA

A large submarine makes its way through the waters. We hear RADAR pinging.

INT. SUBMARINE, CONTROL ROOM

The crew seems to be moving in a type of controlled chaos. Everyone knows their job, but there is a sense of urgency.

MAN: (over radio)
Signal is genuine. Signal is genuine. Zero bravo...

The CAPTAIN and his lieutenant, STEPASHIN, insert their keys into the slots on the control panel.

EXT. SEA

Two bays open exposing nuclear missiles.

INT. SUBMARINE, CONTROL ROOM

The CAPTAIN delivers orders over the radio.

CAPTAIN: Prepare to launch nuclear weapons.

CREWMAN: Aye, sir.

MAN: (over radio)
Moscow confirming launch sequence.

CAPTAIN: (readies hand over the launch button) The Firebird stands ready to serve.

STEPASHIN: For the motherland.

CAPTAIN: For the motherland. (rests thumb above button, about to push)

A voice comes through singing along with "Vienna" by Ultravox as if learning the words. An older MAN comes through the hatch listening to a Walkman.

MAN: (sings) This means nothing to me. Oh, Vienna.

The CAPTAIN and STEPASHIN look at him.

MAN: Have I interrupted something?

CAPTAIN: We were about to blow up the world, Professor.

PROFESSOR: Again? (puts a hand on the Walkman) Ultravox! I bloody love 'em. Got a friend who sends me the tapes.

The CAPTAIN walks over to the radio microphone.

CAPTAIN: This is the captain. Drill abandoned. All hands, stand down. Repeat - drill abandoned.

STEPASHIN: With respect, sir, we must run it again.

CAPTAIN: Tomorrow.

STEPASHIN: Comrade Captain, the NATO exercises...

CAPTAIN: Sabre-rattling.

STEPASHIN: I don't think so.

CAPTAIN: Oh, you don't think so?

STEPASHIN: Sir, American aggression gets more intolerable by the day. We must run the drill again!

CAPTAIN: Tomorrow.

STEPASHIN leaves.

CAPTAIN: (to PROFESSOR) Did you have your specimen stowed ok?

PROFESSOR: Yeah, Piotr's looking after it.

CAPTAIN: Well, at least we have something to show for our little hunting expedition. What is it? A mammoth?

PROFESSOR: Probably.

INT. SUBMARINE, HOLD

A large block of ice sits in the hold. A dark figure can be seen within. PIOTR, a young crewman, stands beside it, a lighter in his hand.

PIOTR: What are you, Milaya Moya? Professor wants you thawed out back in Moscow, but... Life's too short to wait.

PIOTR lights a blowtorch and uses it on the ice. The ice starts to melt and PIOTR can hear a rumbling and cracking. Something seems to move inside. A hand breaks through the ice, grabbing PIOTR by the throat. The creature growls ferociously.

---

Matt Smith
Jenna-Louise Coleman

DOCTOR WHO
"Cold w*r"
By
Mark Gatiss

PRODUCER
Denise Paul

DIRECTOR
Douglas Mackinnon

---

INT. SUBMARINE

The creature is free and starts k*lling the crew as they get in his way. It fires a w*apon and, in the enclosed space, breaches the integrity of the hull, causing water to enter.

CREWMAN: Ah! Get away! Alarm! Alarm!

INT. SUBMARINE, CONTROL ROOM

Water has found its way to the bridge. The crew fights to maintain control of the submarine. The alarm blares.

STEPASHIN: Hold the bridge, port side!

CAPTAIN: Evasive manoeuvres!

ONEGIN monitors their descent.

ONEGIN: Descending to 200 metres.

CREWMAN: (over radio) We're under att*ck!

ONEGIN: 210!

The hull creaks against the pressure as they fall deeper.

CAPTAIN: Bring her up, bring her up!

ONEGIN: It's no good, sir!

The TARDIS chooses this moment to materialize.

DOCTOR: (opens door wearing sunglasses) Viva Las Vegas!

The submarine tilts causing the DOCTOR to fall towards one of the control panels. CLARA, wearing a short dress, falls beside him with a scream.

STEPASHIN: Intruder on the bridge!

CAPTAIN: Who the hell are you?

The DOCTOR puts the sunglasses in his pocket.

CLARA: Not Vegas then!

DOCTOR: No. No, this is much better! (pushes wer hair away from his face)

CLARA: A sinking submarine?

DOCTOR: A sinking Soviet submarine!

STEPASHIN: Break out side arms! Restrain them!

ONEGIN: 410. 420! Turbines still not responding!

CAPTAIN: They've got to!

DOCTOR: (uses the sonic) Ah! Sideways momentum! You've still got sideways momentum!

CAPTAIN: What?

DOCTOR: Your propellers work independently of the main turbines. You can't stop her going down but you can manoeuvre the sub laterally! Do it!

STEPASHIN: Get these people off the bridge now!

Two crewmen grab the DOCTOR'S arms.

CLARA: Just listen to him, for God's sake!

DOCTOR: Geographical anomaly to starboard - probably an underwater ridge.

CAPTAIN: How do you know this?

DOCTOR: Look, we have just a chance to stop the descent if we settle on it. Do it!

ONEGIN: 600 metres, sir. 610...

DOCTOR: Or this thing is going to implode!

CAPTAIN: Lateral thrust to starboard - all propellers!

ONEGIN: Sir?

CAPTAIN: Now!

STEPASHIN: You're going to let this madman give the orders?

CAPTAIN: Lateral thrust!

ONEGIN: Aye, sir!

The DOCTOR has the sonic out again.

ONEGIN: 660...680...

EXT. SEA

The submarine crashes onto the ridge. It slides a little before coming to a halt.

INT. SUBMARINE, CONTROL ROOM

Everyone breathes a little easier now that the submarine has come to a halt. The DOCTOR puts his sunglasses back on.

ONEGIN: Descent arrested at...700 metres.

CAPTAIN: It seems we owe you our lives - whoever you are.

DOCTOR: I'll hold you to that. Might come in handy!

STEPASHIN: Search them. Yes, I know, it's a woman. Now search them!

The crewmen push the DOCTOR and CLARA back against a pole in the middle of the bridge.

DOCTOR: Eh? Ooh!

CLARA: Are we going to be ok?

DOCTOR: Oh, yes.

CLARA: Is that a lie?

DOCTOR: Possibly. Very dangerous time, Clara. East and west standing on the brink of nuclear oblivion. Lots of itchy fingers on the button.

CLARA: Isn't it always like that?

DOCTOR: Sort of. But there are flash points and this is one - hair, shoulder pads, nukes. It's the '80s. Everything's bigger!

As the DOCTOR speaks, his pockets are searched. Some of the items taken are a Barbie doll, a ball of twine, and the sonic screwdriver.

DOCTOR: I'd like a receipt, please. (makes a grab for the sonic)

CAPTAIN: (takes sonic) What is this?

The sub creaks and tilts. CLARA falls away from the DOCTOR.

DOCTOR: Clara!

CLARA: Doctor!

DOCTOR: Clara!

To the DOCTOR'S right, the TARDIS starts dematerializing.

DOCTOR: No, no, no, no! No, not now!

CLARA falls under the water and the last thing she sees is the glowing sonic screwdriver.

LATER

CLARA comes to slowly to the muffled voices of the DOCTOR and the CAPTAIN arguing. One of the officers has given her the jacket from his uniform.

DOCTOR: Captain, we didn't know the type of your ship out here...

CAPTAIN: Yeah, well, that's till the rescue ship comes.

DOCTOR: If it comes!

CAPTAIN: Oh, the sinking is just a coincidence, is it? Who are you?

CLARA stands as the CAPTAIN pushes the DOCTOR against the wall.

DOCTOR: All right, Captain, all right. You know what? Just this once, no dissembling, no psychic paper, no pretending to be an Earth ambassador. Doctor - me and Clara, time travellers. Clara, you ok?

CLARA: Think so.

CAPTAIN: Time travellers?

DOCTOR: We arrived here out of thin air! You saw it happen!

PROFESSOR: I didn't.

DOCTOR: Your problem, mate, not mine!

CLARA: We were sinking...

DOCTOR: Yes.

CLARA: What happened?

DOCTOR: We sank.

CLARA: No, what happened to the TARDIS, I mean?

DOCTOR: Never mind that. Listen... Captain, breath's precious down here. Let's not waste it, eh?

CAPTAIN: You're right, maybe I can save a little oxygen by having you both sh*t?

CLARA: (walks forward) What does it matter how we arrived? The important thing is to get...

The DOCTOR points at CLARA while watching the CAPTAIN. He doesn't hear the growling and doesn't see everyone else look stunned.

CLARA: …out.

DOCTOR: Exactly! Number one priority, not suffocating! (pats the CAPTAIN'S chest)

The CAPTAIN sees what's behind the DOCTOR and backs away, releasing his hold on him.

DOCTOR: Eh? Ah, oh, thank you! Finally, seeing sense! Now, what sort of state is the sub in?

The DOCTOR turns to face everyone and we see the creature standing behind him. It is large and covered in some sort of armour.

CLARA: Doctor!

DOCTOR: What about the radio? Can we send a...

CLARA: Doctor!

DOCTOR: What?!

Behind him, the creature hisses.

DOCTOR: What is that? Gas? Could be gas!

The DOCTOR finally sees everyone staring behind him and slowly turns around to see the creature. The creature growls again.

DOCTOR: (nervously smiles and backs away) Ah...

The creature takes a few steps forward.

DOCTOR: It never rains but it pours.

PROFESSOR: We were drilling for oil in the ice. I thought I'd found a mammoth.

DOCTOR: It's not a mammoth.

PROFESSOR: No.

CLARA: (comes to stand by the DOCTOR) What is it, then?

DOCTOR: It's an Ice Warrior. A native of the planet Mars. And we go way back. Way back.

CAPTAIN: A Martian? You can't be serious.

DOCTOR: I'm always serious. With days off.

CLARA: (whispers) Doctor!

DOCTOR: (whispers) Just keeping it light, Clara, they're scared.

CLARA: They're scared? I'm scared!

One of the officers comes up behind CLARA and aims his g*n at the Ice Warrior. The Ice Warrior in turn lifts his arm containing his w*apon.

DOCTOR: No, no, no, no, no, no! Please, please, wait! Just... there's no need for this! Just hear me out! You're confused, disorientated - of course you are. You've been lying dormant in the ice for, for how long? (snaps fingers) How long, Professor?

PROFESSOR: By my reckoning, 5,000 years.

DOCTOR: 5,000 years? That's a hell of a nap. Can't blame you if you've got out of the wrong side of bed. Nobody here wants to hurt you. (pushes down officer's g*n) Please, just, why don't you tell us your name?

CAPTAIN: What're you talking about? It has a name?

DOCTOR: Of course it has a name - and a rank. This is a soldier. And it deserves our respect.

CAPTAIN: This is madness. That is a monster!

ICE WARRIOR: Skaldak.

The DOCTOR points at SKALDAK and he turns to look at the CAPTAIN. He quickly turns back to SKALDAK, upset by what he's heard. He takes a couple of steps forward.

DOCTOR: What did you say?

SKALDAK: I am Grand Marshal Skaldak.

DOCTOR: (briefly closes eyes) Oh, no.

SKALDAK growls and shudders as electricity courses through him. He turns around to face his attacker. It is STEPASHIN.

DOCTOR: You idiot!

SKALDAK falls to the floor, unconscious.

DOCTOR: You... idiot! Grand Marshal Skaldak.

CLARA: You... know him?

DOCTOR: Sovereign of the Tharsisian caste, vanquisher of the Phobos heresy. The greatest hero the proud Martian race has ever produced.

CAPTAIN: So what do we do now?

DOCTOR: Lock... him... up!

INT. SUBMARINE, TORPEDO ROOM

SKALDAK growls as he is chained to pipes running along the wall. He turns to ONEGIN.

SKALDAK: Is it true?

ONEGIN: True?

SKALDAK: I slept for 5,000 years?

ONEGIN: Er, that's what the Professor says.

SKALDAK: 5,000 years!

SKALDAK bows his head, ONEGIN and the other crewmembers leave.

INT. SUBMARINE, COMMUNICATIONS

The DOCTOR and CLARA are standing before the CAPTAIN. STEPASHIN and the PROFESSOR are there as well.

DOCTOR: The Ice Warriors have a different creed, Clara. A different code. By his own standards, Skaldak is a hero. It was said his enemies honoured him so much they'd carve his name into their own flesh before they d*ed.

CLARA: Oh, yeah, very nice. He sounds lovely.

CAPTAIN: An Ice Warrior? Explain.

DOCTOR: There isn't time!

CAPTAIN: Try me.

DOCTOR: Martian reptile known as the Ice Warrior. When Mars turned cold they had to adapt. They're bio-mechanoid - cyborgs. Built survival armour so they could exist in the freezing cold of their home world, but an increase in temperature and the armour goes haywire.

CLARA: Like with the cattle prod thing?

DOCTOR: Like that cattle prod thing. Bit of a design flaw, I've always wondered why they never sorted it. Oh, look. You've got me telling you about them and I said there wasn't time!

CLARA: Is he that dangerous?

DOCTOR: This one is.

INT. SUBMARINE, TORPEDO ROOM

SKALDAK growls.

SKALDAK: Find me, my brothers, if you are still out there. Find me.

SKALDAK activates a transmitter in his armor.

INT. SUBMARINE, COMMUNICATIONS

The beeping from the transmitter can be heard through the PROFESSOR'S Walkman headphones. He slips them on his head. The DOCTOR notices.

STEPASHIN: Why are we listening to this nonsense, Captain? These people are clearly enemy agents.

CLARA: Eh?

STEPASHIN: Spies, captain!

CLARA: Pretty bad spies, mate. I don't even speak Russian!

The DOCTOR tries to shush her but fails. STEPASHIN looks at her.

STEPASHIN: What?

CLARA: I don't... Am I speaking Russian? How come I'm speaking Russian?

DOCTOR: Now? We have to do this now?

CLARA: Are they speaking Russian?

DOCTOR: Seriously? Now?! It's the TARDIS translation matrix.

STEPASHIN: (turns back to the CAPTAIN) In my opinion, Comrade Captain, this creature is a Western w*apon.

CLARA: Are they?

DOCTOR: Yes! They're Russians!

CAPTAIN: A w*apon?

STEPASHIN: Survival suit. What is the alternative? The little green man from Mars?

PROFESSOR: Correction. It's a big green man from Mars.

The CAPTAIN chuckles.

STEPASHIN: I do not appreciate your levity, Professor.

PROFESSOR: Why does that not surprise me? Maybe they're telling the truth.

STEPASHIN: The truth?

PROFESSOR: Yes. A revolutionary concept, I know.

STEPASHIN: It's essential that we inform Moscow of what we have found!

CAPTAIN: The radio's out of action, in case you hadn't noticed, Stepashin.

STEPASHIN: They have our last position. They will find us. When they do...

CAPTAIN: Yes?

STEPASHIN: Well, the cold w*r won't stay cold forever, Captain.

CAPTAIN: For God's sake, Stepashin, you're like a stuck record! We have other priorities right now. I want you back on repairs immediately, we need to keep this ship alive. Dismissed.

STEPASHIN stands in front of the DOCTOR and stares him down.

STEPASHIN: Sir...?

CAPTAIN: (stands) Dismissed, Stepashin!

STEPASHIN leaves the room, brushing past CLARA as he goes. The DOCTOR steps forward to stand face-to-face with the CAPTAIN. He brushes imaginary lint from the CAPTAIN'S uniform.

DOCTOR: All we needed to do was let Skaldak go and he'd have forgotten us. But you've att*cked him. You declared w*r. "Harm one of us and you harm us all." That's the ancient Martian code.

The beeping can be heard over the headphones.

DOCTOR: You hear that? Skaldak's sent out a distress call. He'll bring down the fires of hell just for laying a glove on him!

CAPTAIN: Unless you talk to it?

DOCTOR: I'm the only one who can.

CAPTAIN: No. Out of the question. We're not losing you. I'll do it.

DOCTOR: What?

CAPTAIN: You can talk to it through me.

DOCTOR: Skaldak won't talk to you! You're an enemy soldier!

CAPTAIN: How would he know that?

DOCTOR: A soldier knows another soldier. He'll smell it on you! Smell it on you a mile off.

CAPTAIN: And he wouldn't smell it on you, Doctor?

DOCTOR: Just let me in there before it's too late. It can't be you or any of your men.

CAPTAIN: Well, it can't be you.

CLARA clears her throat. The DOCTOR and the CAPTAIN turn to face her.

CLARA: Well, there really is only one choice, isn't there? I don't smell of anything... To my knowledge.

DOCTOR: You? No! No! No way. You're not going in there alone, Clara. Absolutely not! No, no. Never!

INT. SUBMARINE, TORPEDO ROOM

CLARA opens the hatch to the torpedo room. She is has a headset with a microphone around her neck. She peers in and sees SKALDAK standing still. She steps inside, closes the door and puts on the headset. She inches into the room and picks up one of the lamps. She turns it on, looks up and smiles.

CONTINUED, INTERCUT WITH –

- CUT TO:

INT. SUBMARINE, COMMUNICATIONS

The CAPTAIN is sitting in front of the microphone and screen. The DOCTOR walks up behind him.

DOCTOR: With your permission?

CAPTAIN: (stands) Be my guest.

The DOCTOR sits and taps the microphone.

DOCTOR: Ready, Clara?

CLARA: Yeah.

DOCTOR: (over headset) Ok.

CLARA: Grand Marshal Skaldak.

DOCTOR: The salute. (over radio) Do the salute like I showed you.

CLARA puts the lamp between her legs and salutes SKALDAK by putting her right fist to her chest. SKALDAK hisses. She picks up the lamp again.

CLARA: Ok?

DOCTOR: Good. Good. Now, like we rehearsed. "Sovereign of the Tharsisian caste..."

CLARA: "Sovereign of the Tharsisian caste. By the moons, I honour thee."

DOCTOR: (over radio) Good. It's ok, Clara. Go closer.

CLARA walks slowly towards SKALDAK.

CLARA: Grand Marshal, I'm... We're sorry about this.

DOCTOR: It's not what you deserve.

CLARA: (over radio) It isn't what you deserve.

The power goes out through the sub.

CLARA: Oh! Oh, great.

DOCTOR: Hey, it's ok, Clara. Keep going.

CLARA puts down the now-dead lamp and turns on a flashlight.

CLARA: You're a long way from home.

DOCTOR: 5,000 years.

CLARA: And 5,000 years adrift in time. Please, let us help you. You're not our enemy.

SKALDAK: And yet, I am in chains.

CLARA: Doctor, what do I say?

SKALDAK: Yes, Doctor. What should she say?

PROFESSOR: I think he wants to speak to the organ-grinder, not to the monkey.

CLARA: I heard that.

DOCTOR: You're restrained until we can trust each other, Skaldak. You would do exactly the same in my position and don't even think about using that sonic w*apon. (over radio) Not in the torpedo room.

SKALDAK: I was fleet commander of the Nix Tharsis. My daughter stood by me... It was her first taste of action. We sang the songs of the old times. The songs of the red snow. 5,000 years, now my daughter will be... dust! Only dust.

DOCTOR: No, no, no, listen. Your people live on, Skaldak! Scattered all across the universe. And Mars will rise again, I promise you. Just, let me help you.

CLARA slowly steps closer to SKALDAK.

SKALDAK: I require no help. (over radio) There will be no help!

The DOCTOR sees CLARA move closer.

DOCTOR: Careful, Clara.

CLARA: (over radio) I'm ok.

DOCTOR: No, listen, Clara, don't get too close.

CLARA: I'm ok! Doctor, something's wrong.

DOCTOR: What?

CLARA: Something's...

CLARA reaches out and touches SKALDAK'S helmet. It falls backwards to reveal empty armor. She steps back with a gasp.

CLARA: It's not there! It's gone!

The front of the armor opens by itself to show advanced tech inside.

DOCTOR: Gone? Gone? Gone, what do you mean, gone?!

CLARA: It's got out!

SKALDAK: It is time I learned the measure of my enemies. (over radio) And what this vessel is capable of.

CLARA looks around nervously in the dim light.

DOCTOR: No, no, no, Skaldak!

SKALDAK: Harm one of us and you harm us all! By the moons, this I swear!

DOCTOR: Clara! Get out of there! Get out!

The DOCTOR gets up from the chair and rushes for the door. The CAPTAIN pulls his g*n on the DOCTOR.

DOCTOR: I've never seen one do this before! Actually, I've never seen one out of its armour before.

The CAPTAIN lowers his g*n and the DOCTOR runs for the door.

PROFESSOR: Won't it be more vulnerable out of its shell?

DOCTOR: (pauses in doorway) No, it will be more dangerous. (runs off)

INT. SUBMARINE, TORPEDO ROOM

CLARA spins around with the flashlight, trying to pinpoint SKALDAK'S location.

INT. SUBMARINE CORRIDORS

The DOCTOR runs to the torpedo room.

DOCTOR: Clara! Clara!

INT. SUBMARINE, TORPEDO ROOM

CLARA hears SKALDAK. She sees the hatchway and runs over to try and open it.

CLARA: Come on!

CLARA grunts as she tries to push it open. It opens finally and CLARA falls. SKALDAK streaks past her out into the corridor.

INT. SUBMARINE CORRIDORS

SKALDAK rushes past the DOCTOR, the CAPTAIN and ONEGIN. The DOCTOR hurries to the hatchway.

DOCTOR: Clara! Clara! Clara! Clara! (pulls CLARA out, hugging her)

CLARA: I'm ok. Ha-ha, I'm ok, I'm ok! Where did he go?

The PROFESSOR hears the beeping continue over his Walkman.

CLARA: How did I do? Was I ok?

DOCTOR: This wasn't a test, Clara.

CLARA: I know but...

DOCTOR: You were great. Yeah.

CLARA: Really?

DOCTOR: (puts a hand on her shoulder) Really.

PROFESSOR: Doctor, the signal, it's stopped.

The DOCTOR hurries over to the PROFESSOR and listens in.

DOCTOR: Skaldak got no answer from his Martian brothers. Now he's given up hope.

CAPTAIN: Hope of what?

DOCTOR: Being rescued. He thinks he's been abandoned. He's got nothing left to lose.

EXT. SEA

More pieces of rock fall from the ridge under the submarine.

INT. SUBMARINE CORRIDORS

CAPTAIN: But what can he do stuck down here like the rest of us? How bad can it be?

DOCTOR: This sub's stuffed with nuclear missiles, Zhukov. It's fat with them! What do you think Skaldak's going to do when he finds that out? "How bad can it be? How bad can it be?" It couldn't be any worse.

EXT. SEA

Rocks fall from the cliff above the sub, worsening it's already precarious position.

INT. SUBMARINE CORRIDORS

They are jostled about. One of the hatches between the hulls opens and water pours in.

DOCTOR: Ok, spoke too soon.

INT. SUBMARINE, MANEUVERING ROOM

STEPASHIN is alone making repairs when he hears the familiar growling sound. He pulls out his p*stol and slowly walks forward with his flashlight.

STEPASHIN: Hello? Who's there? Who's there?

He hears the growling again and looks between the banks of machinery.

STEPASHIN: Who's there?!

STEPASHIN hears a sound and turns around. Behind him, two clawed hands reach for him, one on his shoulder and one on his head. STEPASHIN shudders.

STEPASHIN: What do you want with me?

SKALDAK: Much.

INT. SUBMARINE, CONTROL ROOM

The CAPTAIN gives the crew a situation update.

CAPTAIN: Comrades, you know our situation. The reactor is drowned, we are totally reliant on battery power and our air is running out. Rescue is unlikely but we still have a mission to fulfill. If the Doctor is right, then we are all that stands between this creature and the destruction of the world. Control of one m*ssile is all he needs. We are expendable, comrades, our world is not. I know I can rely on every one of you to do his duty without fail. That is all.

INT. SUBMARINE, MANEUVERING ROOM

SKALDAK now has one hand on STEPASHIN'S head and one on his face.

STEPASHIN: Listen to me. We both understand each other. This... This mewling time of peace, it doesn't suit us. We are both warriors... And... together... we can form an alliance.

SKALDAK: An alliance?

STEPASHIN: Yes... To win the cold w*r!

SKALDAK: Cold w*r?

STEPASHIN: Both sides are capable of completely obliterating the other. It's a state we call mutually assured destruction.

SKALDAK: Mutually assured destruction? But this has not occurred?

STEPASHIN: No.

SKALDAK: Not yet.

INT. SUBMARINE, CONTROL ROOM

The DOCTOR is sitting at one of the banks of controls. CLARA sits next to him, facing the room.

CLARA: Even if a m*ssile did get launched, that wouldn't be... it, would it?

DOCTOR: "It"?

CLARA: End of the world. Game over. I mean, what if they fired one by accident, what would happen then?

DOCTOR: I told you, Clara. Earth is like a storm waiting to break, right now. Both sides baring their teeth, talking up w*r. It would only take one tiny spark.

CLARA: But the world didn't end in 1983, did it? Or I wouldn't be here.

DOCTOR: New. History's in flux. It can be changed. Re-written. (stands and walks over to CAPTAIN) How many of us are left?

CAPTAIN: 12 - and we can't find Stepashin.

DOCTOR: We split up and comb the sub. One team stays here to guard the bridge.

CAPTAIN: That's it? That's the plan?

DOCTOR: Well, it's either that or we stay here and wait for him to k*ll us.

CAPTAIN: Ok. (walks away)

CLARA: Is it true you've never seen one outside of its shell suit?

DOCTOR: "Shell suit"?

CLARA shrugs.

DOCTOR: Clara! For an Ice Warrior to leave its armour is the gravest dishonour. Skaldak is desperate, he is deadly and we have got to find him.

PROFESSOR: Will this help? (holds up sonic)

DOCTOR: Ah! You saved it! (takes sonic)

PROFESSOR: No, no, it was on the floor with this. (holds up doll)

DOCTOR: Ah! (takes doll and kisses it) Ah, Professor, I could kiss you!

PROFESSOR: If you insist.

DOCTOR: Later. (happily uses sonic)

INT. SUBMARINE CORRIDORS

ONEGIN and BELEVICH are paired together in the search.

ONEGIN: Do you think it's true, sir? A Martian?!

BELEVICH: (shakes head) I don't know what to think.

ONEGIN and BELEVICH continue on. In a different section of corridor, CLARA is with the DOCTOR and the PROFESSOR. The DOCTOR scans with the sonic.

CLARA: So, why have you got a cattle prod on a submarine?

PROFESSOR: Polar bears.

CLARA: Ah, right.

PROFESSOR: We run across them when we're drilling. Can be quite nasty, you know?

CLARA: I'd swap one for an Ice Warrior any day. Cuddlier!

PROFESSOR: Courage, my dear.

The DOCTOR flicks a switch and an alarm start blaring. He tries to shut it off.

PROFESSOR: I always sing a song.

CLARA: What?

PROFESSOR: To keep my spirits up.

CLARA: Yes, that would work... if this was Pinocchio.

The DOCTOR is still trying to stop the alarm.

PROFESSOR: D'you know Hungry like the Wolf?

CLARA: (stops and looks at him) What?

PROFESSOR: Duran Duran - one of my favourites. Come on!

CLARA: I'm not singing a song!

The DOCTOR opens a hatch in the wall with a rush of air. He sticks his head in and uses the sonic. There is an eerie groaning that all of them notice. The DOCTOR pulls his head out.

CLARA: What was that?

DOCTOR: Pressure. Just pressure. We're 700 metres down, remember?

PROFESSOR: Don't worry about it. Think of something else. (sings) Da-da-da-da-da-da-da-da I am hungry like the wolf.

CLARA: I'm not singing!

PROFESSOR: Don't you know it?

CLARA: ‘Course I know it. We do it at karaoke. The odd hen night.

PROFESSOR: "Karaoke"? "Hen night"? You speak excellent Russian, my dear, but sometimes I don't understand a word you're talking about.

CLARA smiles and continues on. In another section of the submarine, ONEGIN and BELEVICH continue their search.

ONEGIN: If we get out of here, we'll be bloody heroes!

BELEVICH: If we get out of here. (takes a few steps ahead of ONEGIN)

ONEGIN: The first people in the world to discover a genuine, living...

SKALDAK'S hands reach down from the ceiling, grip ONEGIN by the head and pull him up.

BELEVICH: Alien? I don't know. You hear stories, don't you? Stories about the things the Kremlin don't want us to... (turns around and sees he's alone) Onegin? Onegin?

CUT TO CORRIDOR WITH DOCTOR, CLARA and PROFESSOR

They hear snarls, growls and screams. The DOCTOR runs towards the sounds and the others follow. The DOCTOR is the first to find the bodies and kneels beside one. The look on his face tells us how horrible the scene is. CLARA and the PROFESSOR aren't too far behind him. CLARA is shocked by the sight.

PROFESSOR: Good God! Torn apart. It's a monster. A savage!

DOCTOR: No, Professor. Not savage, forensic. Well, he's... dismantled them. Skaldak's learning. Learning all about you. Your strengths... Your weaknesses... (scans with sonic and stands) Come on! (dashes from the room)

The PROFESSOR follows the DOCTOR. CLARA can't seem to look away. The PROFESSOR notices and takes her arm, pulling her away. The DOCTOR hurries down another corridor, the sonic held out in front of him. He stops.

DOCTOR: Stay here.

CLARA: Ok.

DOCTOR: Stay here! Don't argue. (starts up ladder)

CLARA: I'm not!

DOCTOR: (pauses) Right. Good! (continues)

PROFESSOR: It's a young man's game, all this dashing about! (sits on lip of door) Clara, what is it?

CLARA: I was doing ok. I mean, I went in there and did the scary stuff, didn't I? I went in there with the Ice Warrior and it went ok. Actually, it went just about as badly as it could have done but that wasn't my fault.

PROFESSOR: Not at all.

CLARA: (leans against ladder) So, I'm happy about that.

PROFESSOR: Yes!

CLARA: (softly) Chuffed.

PROFESSOR: And so you should be. So what's the matter?

CLARA: Seeing those bodies back there... It's all got very... real. Are we going to make it?

PROFESSOR: Yes, of course.

The metal groans.

CUT TO ANOTHER CORRIDOR WITH CAPTAIN

The CAPTAIN is with two other crewmen, r*fles at the ready. They hear growling and the CAPTAIN sees something pass by a grate.

CAPTAIN: It's in the walls!

INT. SUBMARINE, MANEUVERING ROOM

The DOCTOR opens the door to the room and skids to a stop when he sees the body. He kneels down and picks up the wallet lying on the floor. Inside is a photo of a woman and his ID card. It is smeared with blood.

DOCTOR: Oh, Stepashin.

He hears metal rattling and retreating footsteps. He looks up and scans with the sonic. He runs along, still looking up.

DOCTOR: Oh... oh... oh! Fast. He's fast...

The DOCTOR continues on his way.

INT. SUBMARINE CORRIDORS

CLARA hears an eerie groaning.

CLARA: What was that?

PROFESSOR: The Doctor told you, it's just the boat settling. Tell me about yourself. What do you like doing? Clara?

CLARA hears some metallic rattling and looks around.

PROFESSOR: Clara?

CLARA: (distracted) Stuff. You know, stuff.

PROFESSOR: "Stuff"? Very enlightening. And the Doctor, what he said, is it true? You're... from another time... from our future? Clara?

CLARA: Yes.

PROFESSOR: (stands) Tell me what happens.

CLARA: I can't.

PROFESSOR: Well, I need to know.

CLARA: I'm not allowed.

PROFESSOR: No, please.

CLARA: I can't!

PROFESSOR: Ultravox, do they split up?

CLARA: (laughs) Funny. You're funny!

SKALDAK'S hands reach down and grip CLARA'S head.

PROFESSOR: Let her go!

The PROFESSOR fires his p*stol at SKALDAK who lets go of CLARA and pulls back into the ceiling. CLARA breathes deeply.

PROFESSOR: (grins) See... I don't just like Western music! (twirls g*n)

SKALDAK reaches down and grabs the PROFESSOR as he did CLARA. The DOCTOR comes running up behind CLARA.

CLARA: No, please, don't hurt him. Please!

The DOCTOR looks up and all that can be seen of SKALDAK is his red eyes.

SKALDAK: You att*cked me! Martian law decree's that the people of this planet are forfeit. I now have all the information I require. It will take only one m*ssile to begin the process. To end this cold w*r.

DOCTOR: Grand Marshal, there is no need for this. Listen to me...

SKALDAK: My distress call has not been answered. It will never be answered. My people are dead. They are dust. There is nothing left for me except my revenge. (growls)

A beeping starts.

INT. SUBMARINE, TORPEDO ROOM

SKALDAK'S armor closes.

INT. SUBMARINE CORRIDORS

DOCTOR: There is something left for you, Skaldak. Mercy.

SKALDAK: Mercy?

The CAPTAIN arrives, his g*n aimed at SKALDAK.

CAPTAIN: You must wear that armour for a reason, my friend. Let's see, shall we?

DOCTOR: (grabs the r*fle barrel, pushing it down) No, Captain, wait!

CAPTAIN: I will do whatever it takes to defend my world, Doctor.

DOCTOR: (holds hands in placating gesture) Yes, great, fine, good, but we're getting somewhere here. We're negotiating, "jaw-jaw not w*r-w*r".

PROFESSOR: Churchill?

DOCTOR: (points) Churchill.

CAPTAIN: Very well, we'll negotiate but from a position of strength. (aims g*n at SKALDAK)

SKALDAK: Excellent tactical thinking. My congratulations, Captain.

CAPTAIN: Thank you.

SKALDAK: Unfortunately, your position is not, perhaps, as strong as you might hope.

There is a low growl and the DOCTOR looks around.

DOCTOR: What do you mean?

The armor arrives, chains still trailing from the ankles and wrapped around the torso. SKALDAK streaks over to the suit and it closes around him.

DOCTOR: He summoned the armour.

CLARA: How did it do that?

DOCTOR: Sonic tech, Clara. The song of the Ice Warrior!

The crewman who had been with the CAPTAIN comes forward and starts sh**ting at SKALDAK as the Ice Warrior turns and walks away. The DOCTOR grabs the crewman and stops him sh**ting.

SKALDAK: My world is dead but now there will be a second red planet! Red with the blood of humanity!

DOCTOR: Skaldak! Skaldak! Wait!

The DOCTOR runs after SKALDAK. The others follow. SKALDAK makes his way through the corridors, crewmen sh**ting at him.

INT. SUBMARINE, CONTROL ROOM

Wires extend from SKALDAK'S fingers and enter the openings in the control panels. The key ports switch and the lights turn red.

EXT. SEA

Two bays open exposing nuclear missiles.

INT. SUBMARINE, CONTROL ROOM

The DOCTOR rushes in followed by the CAPTAIN.

DOCTOR: No! Skaldak! Wait! Wait! Wait!

CAPTAIN: (aims g*n at SKALDAK) He's arming the warheads!

DOCTOR: Where is the honour in condemning billions of innocents to death? 5,000 years ago Mars was the centre of a vast empire. The jewel of this solar system. The people of earth had only just begun to leave their caves. Five thousand years isn't such a long time, they're still just frightened children. Still primitive. Who are you to judge them?

The wires retract and SKALDAK turns to face the DOCTOR.

SKALDAK: I am Skaldak! This planet is forfeit under Martian law.

DOCTOR: Then teach them! Teach them, Grand Marshal! Show them another way! Show them there is honour in mercy. Is this how you want history to remember you? Grand Marshal Skaldak - Destroyer of Earth?

CLARA catches up and enters the room.

DOCTOR: Because that's what you'll be if you send those missiles. Not a soldier, a m*rder*r. Five billion lives extinguished.

SKALDAK grunts and turns around. His hand hovers over the launch button.

DOCTOR: No chance for goodbyes. A world snuffed out like a candle flame! All right, all right, Skaldak, you leave me no choice. I'm a Time Lord, Skaldak. I know a bit about sonic technology myself.

The DOCTOR holds the sonic screwdriver out towards SKALDAK.

SKALDAK: A thr*at? You thr*aten me, Doctor?

DOCTOR: No. No, not you... all of us. I will blow this sub up before you can even reach that button, Grand Marshal. Blow us all to oblivion.

SKALDAK: You would sacrifice yourself?

DOCTOR: In a heartbeat. (holds the sonic upwards, turns it on and it glows red)

SKALDAK: Mutually assured destruction!

SKALDAK turns around and puts his hand above the button.

DOCTOR: Look into my eye, Skaldak. Look into my eyes and tell me you're capable of doing this. Huh? Can you do that? Dare you do that? Look into my eyes, Skaldak, come on! Face-to-face.

SKALDAK: (turns around) Well, Doctor, (the helmet opens and we see his face) which of us shall blink first?

The DOCTOR is stunned by his first view of an Ice Warrior without armour.

CLARA: Why did you hesitate? Back there, in the dark. You were going to k*ll this man, remember? I begged you not to and you listened. Why show compassion then, Skaldak, and not now? (walks forward) The Doctor's right. Billions will die... Mothers, sons, fathers... daughters. Remember that last battle, Skaldak? Your daughter... You sang the songs...

SKALDAK: Of the red snows.

There is a crashing sound and the submarine shakes.

CLARA: What's happening?!

EXT. SEA

There is an electronic whirring and a beam comes down to encapsulate the submarine.

INT. SUBMARINE, CONTROL ROOM

The CAPTAIN stands there in the center of the room.

EXT. NORTH POLE, DAY

A spaceship hovers in the sky above the submarine. It is the source of the beam.

EXT. SEA

The beam contains the submarine.

INT. SUBMARINE, CONTROL ROOM

SKALDAK: My people live! They have come for me!

EXT. SEA

The beam raises the submarine.

INT. SUBMARINE, CONTROL ROOM

The CAPTAIN watches the depth gauge.

CAPTAIN: We're rising. We're rising!

PROFESSOR: 600 metres... 550...

EXT. NORTH POLE, DAY

The submarine breaks through the ice.

INT. SUBMARINE, CONTROL ROOM

DOCTOR: We've surfaced. Your people have saved us.

SKALDAK: Saved me, not you.

DOCTOR: Just go, Skaldak, please. Please... go in peace.

SKALDAK is transported onto the ship.

CLARA: We did it! We did it!

DOCTOR: (goes to controls) No. No, no, no, no, no! It's still armed. A single pulse from that ship... I'll destroy us if I have to. (holds sonic against forehead) I will destroy us if I have to. Show mercy, Skaldak. Come on, show mercy.

CLARA: (sings nervously) Da-da-da-dah I'm lost and I'm found and I'm hungry like the wolf.

A klaxon sounds as the key ports switch back and the lights turn green.

EXT. NORTH POLE, DAY

The m*ssile hatches close.

INT. SUBMARINE, CONTROL ROOM

The DOCTOR shuts off the sonic and wipes a hand across his forehead.

DOCTOR: Now we're safe.

CLARA walks over to the DOCTOR and hugs him tightly. She ends the hug and clears her throat.

CLARA: Saved the world then?

DOCTOR: Yeah.

CLARA: That's what we do.

DOCTOR: Yeah.

EXT. NORTH POLE, DAY

The hatch opens and the CAPTAIN steps out onto the tower followed by the DOCTOR, CLARA and the PROFESSOR. They look up at the ship. The DOCTOR whistles in appreciation.

CLARA: The TARDIS! Where's the TARDIS? You never explained.

DOCTOR: (embarrassed) Oh, well, don't worry about that.

CLARA: Stop saying that! Where is it?

DOCTOR: Yeah, well, I wasn't to know, was I?

CLARA: Know what?

DOCTOR: I've been tinkering... breaking her in. I'm allowed.

CLARA: What did you do?

DOCTOR: (mumbles) I reset the HADS!

CLARA: Huh?

DOCTOR: I reset (mumbles) the HADS!

CLARA: The what?

DOCTOR: The HADS! The Hostile Action Displacement System! If the TARDIS comes under att*ck - g*nf*re, time-winds, the...sea - it... relocates.

CLARA: Oh, Doctor.

DOCTOR: Haven't used it in donkey's years. Seemed like a good idea at the time. Well, never mind, it's bound to turn up somewhere! (the sonic buzzes) Oh! Ha, see, right on cue! (takes sonic from pocket) Brilliant!

CLARA: Brilliant!

DOCTOR: The TARDIS is at the Pole!

CLARA: Not far then. (heads for the hatch)

DOCTOR: The South Pole.

CLARA: (stops) Ah.

DOCTOR: (to CAPTAIN) Could we have a lift?

The CAPTAIN and CLARA laugh and the PROFESSOR smiles as they go back inside. The DOCTOR mocks them. After they've gone, he watches the spaceship. He salutes and it flies away.