[TARDIS]

(Straight on from the previous episode... the TARDIS still won't go to 2025.)

DOCTOR: No! No, no, no.
BELINDA: So, if we can't get home, and if the TARDIS isn't broken, then it means... what, Planet Earth is broken, or 2025 is broken? Have we been invaded? Or hit by a meteor? Or swatted by a giant moth?
DOCTOR: Oh! Imagine a moth that big!
BELINDA: But really. Cos my parents are back home, and if this is Friday, then they go to this bar with their mates, and my dad sings and everyone laughs and then the whole room ends up singing. Is that still happening, Doctor? Are they safe?
DOCTOR: I hope so.
BELINDA: You hope?
DOCTOR: Come here. I will meet your mum and dad, and I will make your dad laugh, and your mum can whistle at my behind. And I will sing. I will do the singing. That is a promise.
BELINDA: But you can't promise.
DOCTOR: Look at me. I can. I will. I do.

(The TARDIS lands.)

DOCTOR: Oh! Ha! Right. Right. Belinda Chandra, we go out there, we take another Vindicator reading, because each single reading brings us closer to home.
BELINDA: Where have we landed?
DOCTOR: Oh. Five hundred thousand years in the future. We have jumped, baby.
BELINDA: But that's... massive. Do we still exist? I mean, I mean me, I mean human beings. Is there still a human race in 500,000 years?
DOCTOR: There is always a human race. You voyage out there, and own it. Far and wide, across the stars. Come and see?
BELINDA: Wait. Do they still speak English?
DOCTOR: The TARDIS translates. Try it.
BELINDA: Do we get to change our clothes?
DOCTOR: Girl, you are beginning to enjoy this! At last. Come on!

(They run into the magic wardrobe area and come out in blue environment suits as Toxic by Britney Spears plays. The Doctor does mock gun-play.)

DOCTOR: Womp, womp, womp!
BELINDA: Okay! Come on. That looks good!

[Troop ship]

(A klaxon is sounding and the troops are lining up in the corridor where the TARDIS has parked in a conveniently sized alcove.)

DOCTOR: Hiya! I hope you don't mind. My name is the Doctor, this is Belinda.
BELINDA: We're just popping in, really.
SHAYA: Helmets! Attach!
DOCTOR: Better had.
SHAYA: Autoseals, on! And jump, jump, jump!
DOCTOR: What?
BELINDA: What do you mean, jump?
DOCTOR: Wait! Wait!

(And they are tipped out into space.)

[Planet surface]

DOCTOR: It's okay! It's okay. Look.

(Little jets in the soles of their boots give them a softish landing. The Doctor immediately gets the Vindicator working.)

BELINDA: Oh, my God. Life with you.
DOCTOR: I know. I know, I know. But... look.

(A view of a sun and a ringed planet in a nebula. The troops aim their weapons at them.)

SHAYA: Explain yourselves. Immediately.
DOCTOR: My name is the Doctor. This is Nurse Belinda Chandra. Who's your commanding officer back at base?
SHAYA: Squadron Leader Chinchappa.

(The Doctor gets his psychic paper from a handy pouch on his breastplate.)

DOCTOR: Well, I'm higher than Chinchappa. See?
SHAYA: Apologies. I am Platoon Leader Shaya Costallion. I was not informed of your presence.
BELINDA: Well, that's the point. We're like mystery shoppers. Now, we just need to vindicate...
DOCTOR: Done. Babes, we're vindicated.

(He packs up the Vindicator.)

BELINDA: ..and now you can return us to our blue box. Which is in your ship-thing. In the sky. Immediately.
SHAYA: Well, how do we do that? Oh, this is a test?
DOCTOR: Yes.
BELINDA: Yes.
DOCTOR: Yes. Yes. Yes.
SHAYA: This is Planet 6-7-6-7, and the atmosphere is charged with galvanic radiation. It would strip the engines bare. The ship needs to slide down at retrograde velocity.
DOCTOR: Which will take how long?
SHAYA: Five hours.
BELINDA: So, we've got five hours. Can we breathe for five hours?
SHAYA: You can breathe in that suit for five months.
BELINDA: Correct answer. Good.
DOCTOR: So... imagine I don't know anything about this mission. Tell me from scratch, what the hell are you doing here? Because galvanic radiation is tough. Nothing can live on a rock like this. But you've travelled all this way. What for?

(Looking across at buildings.)

SHAYA: Colony Base 15. Basic mining operation with a mercury drop-line, stripping a layer of Carbon 46. Fifteen days ago all contact was lost. The base went silent.
DOCTOR: How many colonists?
SHAYA: Thirty five. Trooper 3, any signs of life?
MO: Nothing. No movement. No damage to the dome. We can't scan for heartbeats because of the radiation, so there's still hope.
SHAYA: Hope is irrelevant. Thank you. Troopers, advance.

[Outside Colony Base 15]

SHAYA: The airlock only takes six. Doctor and Belinda with me, plus Troopers 1 to 3. Troopers 4 to 9, follow us in. Ten, maintain exterior guard.

[Airlock storage]

(The place to leave your helmets and other stuff not needed inside.)

CASSIO: Internal team, unmask.
SHAYA: Discard flight-packs.
CASSIO: Trooper 2, sortie. Take Walkway 1. Any threat to life, you have permission. Shoot to kill.
BELINDA: I keep thinking... This planet's uninhabited but they're mining. Could something live underground?
DOCTOR: Impossible. That radiation soaks through everything, right down to the core. This whole world is cold, lifeless and dead.
CASSIO: You should stay suited.
DOCTOR: Oh. I'm just not loving the look, babes. I come in peace.
CASSIO: It's not appropriate to call me "babes".
DOCTOR: Okay, hun.

(Trooper 2 returns through the bulkhead door.)

KAI: We have a body.

[Walkway]

MO: Don't touch them!
BELINDA: No, but they might still be alive. Okay, no, sorry. That's... They've been dead for a while.
DOCTOR: I'd say that he's broken his neck. Or... broken everything.

[Living quarters]

DOCTOR: My gosh. This one has been shot in the back. Laser fire. There must've been a fight. But why?
SHAYA: Nothing in here.
BELINDA: This one's got a broken neck.
DOCTOR: This one is laser fire. Chalona Rosani. I'm sorry, Chalona. We will find out what happened here.
BELINDA: They broke all the mirrors. Every single room, there's no mirrors.
SHAYA: You're right. Same in here.
BELINDA: Whatever did this was strong.
SHAYA: Half of them have been shot, half of them have been assaulted. What sort of fight is that?
BELINDA: What if no one's alive? What do we do then?
CASSIO: What we should've done in the first place. Nuke this site from orbit.
MO: There's a heartbeat.
SHAYA: Weapons up.
MO: Single heartbeat. Inside that room.
BELINDA: Could be a survivor.
SHAYA: Or could be the killer.
DOCTOR: It could be both.

(The Doctor turns the wheel on the bulkhead door.)

[Storage bay]

(A woman is sitting on a large box in the middle of a well-illuminated area.)

SHAYA: Squadron, keep a safe distance.
ALISS: (deaf) Can you take me home?

(The Doctor can do British Sign Language.)

DOCTOR: Honey, we can do whatever you want.
SHAYA: Do not approach.
BELINDA: Doctor, be careful.
ALISS: I have a daughter. On Monpasso. And she's with her grandad, and she's two years old, and I just want to see her. That's Sal. I shot her, all right, I did it. But she were going to kill me.

(Cassio activates a voice-to-text hologram.)

CASSIO: You. Do not move. Eyes on me at all times, do you understand?
ALISS: Yes.

(Cassio recovers the laser pistol.)

DOCTOR: Who are you?
ALISS: My name is Aliss Fenly and I just want to go home.
MO: Confirmed on the manifest. Aliss Pabba Fenly, 28, citizen of Monpasso. One daughter, Pelody.

(The Doctor and Aliss exchange signing. I think she says something about guns, and he replies with me no, trust me? She says thank you.)

SHAYA: I need you to keep everything audible. No private conversations.
DOCTOR: Okay. Gotcha.
HANNO: Here.

(The Doctor is given a voice-to-text.)

DOCTOR: It doesn't matter the year, signing still makes some people paranoid. Hi. My name is the Doctor.
ALISS: I don't need a doctor. I just want to get home.
SHAYA: Aliss, tell us exactly what happened. Why did you kill this woman?
ALISS: Well, they all... they all went mad. Every single person just went mad. And it all happened so fast.
DOCTOR: But not you?
ALISS: But that's Sal, and she was my friend, but she was going to kill me with her bare hands. I have never fired a gun in my life, but what else could I do? I'm just a cook. I've been here for 12 months, and I cook for them, and that's all. But it's not even cooking. I just open a flat-pack protein and add some salt. And that's what I do, every single day. But I had to kill my best friend.
BELINDA: Are you hurt? I'm sorry, I don't know how to sign, but... your arm. Does it hurt?
ALISS: I ran and I fell. Everyone was panicking.
BELINDA: Can I...?
SHAYA: Do not approach.
DOCTOR: Oh, come on!

(Belinda is given a voice-to-text.)

BELINDA: Do I just clip it on?
DOCTOR: Yeah, just, there you go. Just talk.
BELINDA: Hi. It's okay. I'm a nurse.
ALISS: A nurse who can't sign? That's against the law.
BELINDA: Well, we have different laws. But you're right, it should be the law.
DOCTOR: Aliss. Can I ask? You've been on your own for a long time?
ALISS: Fifteen days.
DOCTOR: What happened, do you know? They all went crazy. Was there... noise? A gas? This mineshaft operates as a mercury drop. Was there any mercury that escaped?
ALISS: I don't know.
DOCTOR: Why did they smash all the mirrors?
ALISS: (signs) I don't know.
DOCTOR: It's okay, it's okay.
BELINDA: Is there a medical pack, or something?
CASSIO: So we just abandon all protocol, is that it, ma'am?
SHAYA: She doesn't look like she could break the necks of half the crew.
CASSIO: You hope. And hope is irrelevant.
SHAYA: Okay, Doctor, we need to get to central control. Stay here if you want.
DOCTOR: Oh, I gotta see that. I won't be long. Belinda's got you. Yeah?

(They turn off their voice-to-text.)

DOCTOR: Bel, be careful of her.
ALISS: I can still lip-read.

(The Doctor signs sorry.)

SHAYA: Troopers 2 to 6, stay on guard, clear the body, 15 foot radius round Aliss Fenly at all times.
CASSIO: Any sign of trouble, shoot to kill.

(Mo hands Belinda a medi pack)

MO: Sorry it's only a basic pack.
BELINDA: Er... thanks, but... I don't know what any of this is.
MO: You're a funny sort of nurse.
BELINDA: Well, that has been said. I suppose it's common sense. Bandages, swabs... Simolin! (voice-to-text on) It's just a graze. I'm going to clean it, and then it'll stop stinging. I know you've had a terrible time, but we're going to do everything we can to help.
ALISS: That's so kind.

[Central control]

(Another large area, with controls on a raised platform next to a big hole down into the planet.)

SHAYA: All clear. Safe to proceed.
DOCTOR: No bodies. Maybe they ran from this place first, that's a nice thought. So what, this is the seed well, yeah?
SHAYA: This is where they first dropped the mercury lines and drilled down. Capable of hauling up two blades of Carbon 46 every day.
DOCTOR: Hello? No one home. A well that runs five miles deep beneath the planet's crust. Where light has never been before.
SHAYA: Nothing's responding. Someone's put a good old-fashioned restraining bolt on the system. There.

(She draws her pistol.)

DOCTOR: Whoa. Whoa, whoa, whoa, don't hit the roof!
CASSIO: Careful, boss.

(Her laser shot hits the restraining bolt on a cable, and the controls power up.)

DOCTOR: Good shot!
SHAYA: I was brought up in the wildlands. Shooting drought-sharks from the age of six. I could run faster than a snake-lighter. That's how I got into the forces, at 14 years old.
DOCTOR: That's a bit young.
SHAYA: The fight began the day I was born. I'm a citizen of Lombardo.
DOCTOR: Oh. Tough. Brutal. So in this century, Lombardo's a joint foundation with Planet Earth. Belinda's from Earth.
SHAYA: From where?
DOCTOR: Planet Earth.
SHAYA: Never heard of it.
CASSIO: Stupid name for a planet.
DOCTOR: But the human race, you've heard of that?
SHAYA: Not in these parts.
DOCTOR: But Earth is part of the Foundation right now. That's a fact.
SHAYA: Your tests are very strange. Now, see if you can revive the base log stats and index file. Let's find out what happened here.

[Storage bay]

BELINDA: It's bad luck, me and the Doctor coming along. Cos you were a squad of 11, and we made it 13.
MO: You both say funny things. What does that mean?
BELINDA: Oh, has that gone? Thirteen as unlucky. Is that an Old Earth thing?
MO: An old what thing?
BELINDA: Earth. The human race?
MO: What's that, then?
BELINDA: (to Aliss) Have you ever heard of...?

(As Belinda looks at Aliss, a dark shape moves behind her. Dramatic chord! Belinda recoils in fear.)

ALISS: What?
MO: What is it?
KAI: What is it? What happened?
BELINDA: I thought I saw... I'm getting paranoid.
KAI: What did you see?
BELINDA: I didn't.
KAI: Anyone there?
BELINDA: Honestly, there's nothing. It's just me. Sorry, Aliss.
ALISS: I want to go home.
BELINDA: Is it ready?
MO: Yeah. Just paste that on. Here I am, teaching the nursing staff.
BELINDA: You're amazing. Thanks, Mo.

(Belinda goes over to Aliss.)

BELINDA: Okay. I'm just going to paste this onto the wound. I was saying, traditions of the human race. Have you ever met any? Humans, I mean.
ALISS: I never heard of you.

[Central command]

CASSIO: They've wiped all the video-chains. Why would they do that? Everything's been erased.

(The Doctor sticks his sonic into another console.)

DOCTOR: Everything... has been restored.
SHAYA: What's that thing?
DOCTOR: Magic. Can you find the last entry?
CASSIO: Troop Leader, does this Doctor have authority over me?
SHAYA: Right now he does, yes.
CASSIO: It's still corrupted. We have fragments. Hold on. Base commander's final statement.
ON SCREEN: (people shouting) It's behind you! From the Well! It came out of the Well! And we don't know how to stop it!

CALLO: Ma'am.
SHAYA: Not now, thank you.
CALLO: It's just... we checked the walkways. We found the rest of them dead. Which confirms, Aliss Fenly is the only one left alive.

[Storage bay]

BELINDA: It's so strange, cos the Doctor said, and, I should mention, I hardly know him. Isn't that strange? But he's the expert, and he said to me that everyone... Ah!

(Another dark shape behind Aliss.)

ALISS: What? What is it, what's...? What happened?
KAI: What is it? What did she do?
BELINDA: No, she didn't do anything! Er, I'm... I'm stupid. There's nothing there. Sorry.
MO: Yeah, but that's twice now. What did you see?
ALISS: Please can you tell me what you're saying?
BELINDA: I'm sorry, Aliss, I... I didn't mean to scare you. I just... I thought I saw something behind you.
ALISS: Well, there isn't, is there? Look at me (spins around) I'm all clean.
BELINDA: It's just me.
KAI: What did it look like?
BELINDA: Well, it didn't. It's an empty room. There's no one there.
MO: You thought you saw a person?
BELINDA: Well, I... I didn't, did I? I... I've got this dirty.
KAI: All the same. Stay where you are, Aliss Fenly.
ALISS: Where exactly am I going to go?
KAI: Keep it calm. Thank you.
ALISS: What?
KAI: Nothing.
BELINDA: Did you see something?
KAI: No.
BELINDA: Then what was that?
KAI: Nothing.
MO: It's a great big empty room. There can't be anything, can there? Aliss? Sorry. Cast to Trooper 2. Aliss, turn to your right.

(Mo's words come up on Kai's voice-to-text.)

ALISS: I don't know what you're trying to prove.
BELINDA: Leave her alone, Mo, c'mon.
MO: No, but...

(The shape appears briefly behind Aliss again.)

MO: Whoa!
KAI: There's nothing there. Look, I can see, there's not anything! There's literally nothing.
MO: I saw something! And you saw it before. You did, you saw it!
KAI: But there's nothing there.
MO: Yeah, but I saw something.
ALISS: I know what you're saying, and I've seen it before. This is how it started. This is how I end up killing my friend before she kill me. There is absolutely nothing behind me. There's nothing there! Nothing!
KAI: Okay. Let's prove it. Hanno. I'll keep guard. I want you to correspond. Establish Aliss Fenly as a centre point and execute a full circle.
ALISS: Please... Please leave me alone.
BELINDA: Look, she's terrified.
KAI: You will be quiet or you will be considered a threat to life. You will stay looking at me. Do not look away. Hanno, execute the move.
HANNO: Yes, sir.

[Central control]

DOCTOR: Him. Isolate him. Can you isolate his sound?
CASSIO: There's no coverage, he's too deep.

(The Doctor uses the keyboard.)

MINER [on screen]: We don't know what it is! We don't know what it is.
DOCTOR: We don't know what it is. We don't know what it is! Like... Like, like... Oh! Oh, my old, old head. This planet is flooded with galvanic radiation. Where does it come from?
SHAYA: Sun. But it's just a grey star now. Nothing special.
DOCTOR: Well, a grey star is a star that's collapsed. What was it before?
SHAYA: It was an Xtonic Star. But that's ancient history, 400,000 years ago. The sun burnt out, the wars came, they stripped all the carbon off the surface and left it ruined.
DOCTOR: When you say carbon...
SHAYA: Carbon 46.
DOCTOR: And the definition of that is?
SHAYA: Diamonds. This is a diamond mine. The entire surface of this planet was once made out of diamonds.
DOCTOR: What?

[Storage bay]

ALISS: Please stop.
KAI: Or what?

(Hanno is almost directly behind Aliss.)

[Central control]

DOCTOR: What is this planet called?
SHAYA: 6-7-6-7.
DOCTOR: The old name. 400,000 years ago, what was the planet called?
SHAYA: It was called Midnight.
DOCTOR: I've been here before.

(Flashback of the Tenth Doctor and Sky Silvestry, and he runs.)

[Storage bay]

(Hanno moves directly behind Aliss then gets thrown through the air. The Doctor runs in.)

KAI: What did you do?
ALISS: It wasn't me!
BELINDA: She was just standing there!
ALISS: I didn't do anything!
DOCTOR: Stop! Stop, stop, stop! Get back! Get back. What happened?
MO: She threw her across the room.
BELINDA: She did not! No, Mo, don't! Come back!

(Mo is moving around to where Hanno landed.)

DOCTOR: What did you do?
ALISS: It wasn't me!
BELINDA: It wasn't her. Mo, come back. Just listen to me, come back here!
MO: She's dead.
BELINDA: Mo, don't go behind Aliss. Don't go anywhere behind her! Come here! Don't you see?
DOCTOR: What... what do you mean?
BELINDA: There is something behind her.
SHAYA: Hold your positions! What happened? Everyone, stay where you are. Report, Trooper 2.
CASSIO: Is she dead?
KAI: I don't know, ma'am.
MO: She's dead.
CASSIO: I trained with her brother.
MO: It was so fast.
CASSIO: Did you do this?
DOCTOR: Just try and stay calm.
CASSIO: I do not take orders from you! Did you kill her?
ALISS: No!
CASSIO: Then who did?
ALISS: There's something behind me. All right? There's something behind me! I don't know what it is. No one knows what it is. But it can't be seen and it can't be stopped. There's something behind me all the time. Now please, help me.
DOCTOR: Aliss. Explain what you mean.
ALISS: Something came out of the Well. That's what they said. It came out of the Well, and they said it was laughing. And now it's behind me.
BELINDA: Just look. Look behind her. Please, all of you, look.
SHAYA: It doesn't make sense. There can't be something behind her, not from every angle.
BELINDA: Try telling it that. Look!
CASSIO: No! This is just... an illusion, or a trick. We saw what happened to the base. They all went mad.
DOCTOR: No! Hold on, listen.
CASSIO: Permission to override the orders of this civilian, ma'am.
SHAYA: Permission not given.
CASSIO: Hanno was my friend.
SHAYA: Permission not given. Now listen to the Doctor.
DOCTOR: No, no. Listen to Belinda. Bel, what do you mean? Why can't we go behind Aliss?

(Belinda uses two metal rings to demonstrate.)

BELINDA: It's like... it's like this. If this is Aliss... and this is us facing her now, there is something behind her. And if you go behind it... you die.
DOCTOR: If it was a clock-face, you die at midnight.
BELINDA: That's what happened, that's what I saw. That's why I keep telling you stand back. Don't go behind her. Don't go directly behind her or you're dead.
CASSIO: In that case, if something is standing behind, then why don't we get rid of you?
ALISS: Because if you kill me, it goes behind you. What, you think it went for me first? You think it crawled its way out of hell to get to me? You idiot. I'm nothing. I'm just the only one left.
SHAYA: Half of them broken, half of them shot.
ALISS: They killed each other to get rid of it. But if you kill the host, it jump over to you. It hide behind your back and it stays there forever.
SHAYA: Cassio, step away. Cassio, that's an order! Doctor, you said you'd been here before. When was that?
DOCTOR: A different life. Back when the world was made of diamonds. And I met something so vile. It had no face, no name, no self. I have never been so scared in my life.
BELINDA: What did it do?
DOCTOR: It had fun. Oh. Huh. It played games. I think it was learning.
CASSIO: You saw this 400,000 years ago? And you're listening to him?
SHAYA: He might have information.
CASSIO: Then I'm declaring a Red Code.
SHAYA: You can't do that.
CASSIO: This is exactly what a Red Code is for. When the Leader is incompetent. Am I seconded? Am I seconded?
KAI: Yes, sir.
CASSIO: Then it's done. Until such time as we reach a disciplinary court, the Red Code stands. You will stand down, Shaya Costallion, right now.
DOCTOR: I think that we should all just calm down...
CASSIO: And you will be silent or you will be shot! Clearly, there is something at work here. Clearly, bodies have been broken by some kinetic force, manipulated either by Fenly or by something in collusion with, or in control of, her. And I maintain...
BELINDA: No, don't!
CASSIO: If it exists, we will bring this entity into the open. We will examine it and if necessary, we will destroy it. Trooper 2?
KAI: Yes, sir?
CASSIO: Do you volunteer to engage?
KAI: Yes, sir.
DOCTOR: I'm telling you, do not...
CASSIO: One more word! Either we disprove this story or we meet the enemy. Prepare to engage.

(They circle Aliss.)

DOCTOR: Don't look. Don't look!
CASSIO: Shut up!

(As Cassio disappears in front of Aliss, we see a blue haze, then Kai screams as he is flung upwards before nearly landing on Cassio.)

DOCTOR: Cassio, stop!
BELINDA: Don't move!

(Aliss keeps turning to face Cassio, and another trooper gets thrown up in the air.)

DOCTOR: Don't! Don't move! Stop!

(Callo rolls out of the way but another trooper isn't quick enough.)

CALLO: No way.

(He runs out.)

DOCTOR: All of you, look down! Do not move!

(Aliss is still turning to face Cassio. Callo looks back and realises he is directly behind Aliss, then dies.)

DOCTOR: Cassio, stay where you are! Stay where you are! Cassio, turn away! Cassio, no!
SHAYA: Cast to Trooper 1. Aliss, turn 180.

(Aliss obeys, and Cassio gets thrown against the wall. The chaos ends.)

SHAYA: I had to. I had to. He was out of control.
DOCTOR: That's what it turns us into. Shaya, gun down.
ALISS: But... it is not my fault.
DOCTOR: I know. I really know.
BELINDA: What do we do?
SHAYA: We leave this place. The mission has failed. We retreat. I'm sorry. You're contaminated.
ALISS: But... my daughter.
BELINDA: We can't leave Aliss behind.
MO: Can't we move her? Okay, we can't step behind her, but can't we manoeuvre her somehow back to the ship?
DOCTOR: She's not leaving this planet. Not with that thing. That's what it wants. To get out.
BELINDA: But we can't abandon her!
DOCTOR: That's not what I said.

(The Doctor has his back turned on Aliss, she cannot see what he is saying)

ALISS: Don't turn your back on me. Please, don't turn your back on me.

(The Doctor signs sorry.)

SHAYA: Doctor, stay where you are.
DOCTOR: Too many people have died. And now it stops. I am now addressing the thing behind Aliss Fenly. My old friend. You have waited 400,000 years. Who are you? Are you there? What... are you?

(As the Doctor kneels in front of Aliss, there are whispers.)

BELINDA: What was that?
SHAYA: Did it say something?
DOCTOR: Oh. Aliss, maybe that's how you survived. You can't hear it.
ALISS: What is it saying?
BELINDA: What is it? What's it saying?
DOCTOR: It knows my name. Oh yes.
BELINDA: What?
DOCTOR: There it is.
SHAYA: What?
DOCTOR: Ha. It's behind you.
ALISS: I know.
DOCTOR: No. No, I'm talking to the thing behind you. And behind that. Ha, ha!
BELINDA: What did you see?
DOCTOR: The way out! Ha! Oh, and I'm an idiot! Because I forgot what type of mine this is! Oh! Everybody, get ready to run, and I mean run! Belinda, we should have never unsuited, babes. We are going to have to work really, really fast. Shaya, how many in the airlock at once?

(The Doctor is loosening valves on vents.)

SHAYA: Six.
DOCTOR: Six. Okay, there's seven of us. Shaya, get ready with that pistol.
SHAYA: For what?
DOCTOR: 'Cos you are the best shot in the land, yeah, and I need you to fire twice. Aliss Fenly, get ready. And now I am talking to that thing behind Aliss Fenly. You stone-cold murderer. If the thing behind you always gets destroyed, what if the thing behind you is you? Shaya, left-hand pipe vent. Right-hand pipe vent.

(Two good shots. Liquid starts pouring out.)

DOCTOR: Mercury. This mine operates a line-drop of Mercury 16.
MO: It's going to reflect it!
BELINDA: It broke all the mirrors.
SHAYA: It'll see itself!
ALISS: What will it do to me?
DOCTOR: Aliss, whatever it does to you, yeah, you have got us, okay? We are with you, okay? Everybody, eyes on Aliss. Yeah?
SHAYA: Are we going to see it?
MO: Do we look?
BELINDA: Do we look away?
DOCTOR: I don't know.

(The curtain of mercury fully forms behind Aliss. She screams and gets pushed forward into the Doctor and Belinda's arms.)

DOCTOR: Okay, run! Run! Run! Run! Run!

[Walkway]

(Aliss leads the charge towards the airlock. The Doctor stops.)

BELINDA: We can't stop!
DOCTOR: I want to see it.

(They see the creature. A look of horror crosses their faces and they run.)

[Airlock storage]

SHAYA: Troopers 7 and 9, you go first. Get Aliss out.

(The Doctor and Belinda run in, Mo starts to get Belinda suited up. Aliss signs 'thank you' as the airlock door closes. The personnel indicator shows four.)

SHAYA: C'mon!
DOCTOR: You should've got out.
SHAYA: I'm not leaving you behind. The flight-packs are dead, just run as far as you can.
BELINDA: Hurry up, hurry up!
SHAYA: Helmets!

(They get knocked to the floor.)

MO: What was that?
BELINDA: Are we okay?
SHAYA: But what happened?
MO: Was that the thing?
BELINDA: Doctor? What happened?
MO: Airlock's clear.
DOCTOR: I am sorry! I'm sorry, but we are not going anywhere. We can't.
BEINDA: You don't think...?
DOCTOR: It's here.
MO: It's not me.
SHAYA: It's not me.
MO: I swear it's not me. It really isn't me, it really isn't.
DOCTOR: I don't think it's me.
BELINDA: No.
DOCTOR: Belinda.
BELINDA: No.
DOCTOR: No, but, Belinda, it might not be...
BELINDA: No, no... It's whispering.
DOCTOR: Oh, Bel.
BELINDA: Is it behind me? I'm so sorry.
DOCTOR: It is not your fault. Take me.
BELINDA: No.
DOCTOR: Whatever you are, stand behind me.
BELINDA: Doctor.
DOCTOR: I promised that I would keep you safe. And I am telling that thing behind you, whatever you are, you can walk the universe on my back, if you just set her free.
SHAYA: Doctor, the physical construction of this human race, is it similar to Lombardic?
DOCTOR: What?
SHAYA: Is the torso constructed the same?
DOCTOR: Basically.
SHAYA: Then a shot fired three millimetres above the superior vena cava of the heart could mean death, or it could mean the narrowest of survival.
DOCTOR: No. No.
BELINDA: You can't.
DOCTOR: No. No.
SHAYA: All you need... is a very good shot.
BELINDA: But it'll go to you.
SHAYA: This is my job.

(Shaya fires, Belinda falls backwards and something ruffles Shaya's hair.)

MO: Med-lines! Out of the way!

(Defibrillator charging and discharging.)

DOCTOR: Power up to 60 and apply to the heart five times.

(Shaya is running back along the walkway.)

SHAYA [OC]: Serving Officer Shaya Costallion, Squadron 7-7-5. I ran as a child. I ran from the wildlands. I ran from those monsters and never looked back. And I ran across the galaxy, with one aim. To do my duty. To help. To protect. To bring hope.

[Central control]

(The Doctor arrives to see Shaya standing on the edge of the Well. She turns to face him and leans backwards.)

DOCTOR: No!

[Colony Base 15]

BELINDA: Simolin?

(Belinda injects herself as the Doctor returns.)

[TARDIS]

(Lying on the floor.)

DOCTOR: It's okay, it's okay. I've got you. I've got you, Bel.
BELINDA: My... my heart...
DOCTOR: Is fine. We got it just in time. Super-skin-stitch. All mending.
BELINDA: Okay.
DOCTOR: Okay?
BELINDA: Okay, okay. What happened?
DOCTOR: It's gone.
BELINDA: And Shaya?
DOCTOR: I'm sorry. I couldn't. I tried.
BELINDA: Did it work? Are we safe?
DOCTOR: Yes.
BELINDA: Doctor... they'd never heard of the Earth. What's happened to the Earth?
DOCTOR: I don't know.
BELINDA: How can the Earth not exist?

[Troop ship]

(Mo is reporting in to her superior.)

MO: And Troop Leader Shaya should be recommended for posthumous recognition. Bravery in the face of impossible odds. And Cassio. He tried his best. The Doctor gave orders to follow his advice. Nuke the site from orbit, never to return.
MRS FLOOD [on screen]: And this Doctor. What do we know about him?
MO: We thought he was sent by you. He's got this sort of cargo, on the ship. A big, tall blue box.
MRS FLOOD [on screen]: Was he carrying this?

(Calls up an image of the tripod device, outside the Palazzo Cinema.)

MO: Er... yes, he was, yes.
MRS FLOOD [on screen]: Well, that's exactly what I needed to know. Just as I predicted. A Vindicator, in action. That's very good news. Thank you.

(TARDIS dematerialising off-screen.)

MO: Excuse me.

(She goes out into the corridor to see an empty space where the TARDIS had been.)

VAL: What was the noise?
MO: Do you know what, Val? I've got absolutely no idea. I don't think I know anything any more.
VAL: You okay? Sounds like a nightmare down there.
MO: That's the word, yeah. I've got to write the report and I couldn't even begin to tell you what happened. What?

(Val is looks over Mo's shoulder at...)

VAL: Nothing.
MO: What is it?

Transcript originally provided by Chrissie. Adapted by TARDIS.guide. The transcripts are for educational and entertainment purposes only. All other copyrights property of their respective holders.