BY: BOB BAKER AND DAVE MARTIN
Part Four
Original Air Date: 23 October 1976
Running time: 25:00
ELDRAD: The traitors. I should have expected.
DOCTOR: Eldrad, what was in this tube?
ELDRAD: An acid designed to neutralise the molecular bond. It is now only a matter of time.
DOCTOR: Is there an antidote?
ELDRAD: Oh no, Doctor. I developed the acid. There is no antidote.
DOCTOR: But there must be something?
ELDRAD: Regenerator chamber, level three zero six. But you must get me there quickly before it shatters the crystal matrix. Quick, quick.
SARAH: Wait, I'm coming.
COMPUTER: Intruders penetrating level fifty and descending. Intruders penetrating level one hundred and fifty and descending.
DOCTOR: Level three oh six.
SARAH: How can you tell?
DOCTOR: Worked it out from the indicator. It's all based on roots of three.
SARAH: I hope that regenerator isn't far.
DOCTOR: Which way, Eldrad?
ELDRAD: That way.
DOCTOR: Come on.
COMPUTER: Intruders on level three zero six identified as two aliens, one Kastrian.
DOCTOR: Sarah!
ELDRAD: She is unharmed, Doctor. These traps are only effective against silicon-based lifeform.
DOCTOR: Come on, Sarah. Stop making a fuss, Sarah. You're from South Croydon.
SARAH: Eh?
DOCTOR: You're a carbon-based lifeform. The gas is only effective against silicon structures.
SARAH: Oh.
DOCTOR: Come on.
SARAH: Hang on. The least you could do is wait for me. I nearly frightened myself to death back there.
DOCTOR: Yes, I know. It's that way.
SARAH: How can you tell?
DOCTOR: I have a superb sense of direction.
SARAH: What?
DOCTOR: I said, I have a superb sense of direction.
DOCTOR: You fit for another stint?
SARAH: Oh, I'm as fit as I'll ever be. Give us a hand. Oh, she's heavier than she looks. Oh, I hope some of them are still alive.
DOCTOR: I'm not sure.
SARAH: Hey, look. No signs of life.
DOCTOR: Perhaps the aliens wiped them out.
SARAH: I wonder how long it's been like this?
DOCTOR: Could be millions of years.
ELDRAD: Doctor, please!
DOCTOR: Are you all right?
SARAH: Yes. If they're dead, you'd think we'd have seen some bodies by now.
DOCTOR: We have.
SARAH: Eh?
DOCTOR: Well, if you're made of stone, you crumble to sand. We're walking on them.
SARAH: Ew.
COMPUTER: Intruders proceeding along level three zero six towards regenerator sector. Awaiting orders to activate a*t*matic defence procedures.
DOCTOR: It can't be far now.
SARAH: Doctor, I've got a feeling we're being watched.
DOCTOR: It's your imagination. Nothing's been disturbed down here for thousands of years.
SARAH: Someone set those boobytraps.
DOCTOR: Oh, it was long ago. Come on.
SARAH: Hey, wait a minute.
DOCTOR: What is it now?
SARAH: Who were they set for?
DOCTOR: Presumably the aliens Eldrad told us about. The people who invaded the planet.
SARAH: That means that they're silicon-based lifeforms too.
DOCTOR: Yes, yes, and they're very rare. And it's something of a coincidence that there are two of them in the same galaxy.
SARAH: Yes. Yes!
COMPUTER: Awaiting orders to activate a*t*matic defence procedures.
SARAH: Ah! Doctor!
DOCTOR: It's an abyss.
SARAH: It's a long way down, too.
DOCTOR: Come on.
SARAH: Hey, we don't have to get across that.
DOCTOR: Is there any other way, Eldrad?
ELDRAD: No.
COMPUTER: Alien intruders have faltered. Awaiting orders.
SARAH: It's not safe.
DOCTOR: It's only got to last until we get across.
SARAH: And what if it only lasts till we get halfway across?
DOCTOR: You've got no faith, have you. Come on, Eldrad.
DOCTOR: It's perfectly all right as long as you don't look down.
DOCTOR: You coming?
COMPUTER: Alien intruders and unidentified Kastrian have reached regeneration chamber. Should they try to enter, they will be eliminated.
DOCTOR: I never met a door that couldn't be opened somehow.
SARAH: Hey, look, Doctor. Eldrad, I think she's found it. Look.
DOCTOR: No!
SARAH: What's the matter?
DOCTOR: Get back.
DOCTOR: Now stand back.
SARAH: You've done it.
DOCTOR: Get back. Get back!
DOCTOR: You all right?
SARAH: Determined lot.
COMPUTER: Intruders have entered the regeneration chamber. Positive identification of Kastrian essential. Obliteration will proceed on positive identification.
DOCTOR: I understand it now. The crystal in the ring carries Eldrad's genetic code. A master print that enables her to reconstitute herself from any suitable radioactive material.
SARAH: The question is, are we in time?
DOCTOR: The question is, can I make this regenerator work?
SARAH: Oh, Doctor, hurry!
DOCTOR: I can't go any faster. I'm guessing as it is. We'll just have to use maximum irradiation and hope.
COMPUTER: Eldrad, genocide, anarch, sentenced to obliteration. Malfunction, malfunction. Power proving insufficient for obliteration. Regeneration will occur.
SARAH: No, stop! It'll crush her!
SARAH: Oh, it's horrid. It's so horrible. It was supposed to remake her. It's destroyed her.
SARAH: We k*lled her.
DOCTOR: Yes, Sarah. We've been used. They were determined to get Eldrad one way or another.
SARAH: Oh, I'm so confused. Oh, what do we do now?
DOCTOR: We leave.
ELDRAD: (male voice) At last! Doctor? Sarah? It is I, Eldrad.
DOCTOR: Eldrad?
ELDRAD: Of course, you don't recognise me.
DOCTOR: How do we know you're Eldrad?
ELDRAD: Oh come, Doctor, you sound like Professor Watson. As a Time Lord you should be well acquainted with the processes of regeneration. I've attained my true form at last.
SARAH: Why is she a he?
ELDRAD: I had to assume a form that would be will be acceptable to the primitives of your planet.
DOCTOR: Ah. And so you modelled yourself on the first primitive you came in contact. He modelled himself on you.
SARAH: Oh, thanks.
DOCTOR: Sarah thought you'd been obliterated.
ELDRAD: They are fools. I gave them this. I designed it, programmed it to recognise my cell pattern, and they thought they could use it to destroy me. Bwahhahaha. It is incapable of destroying me, no matter what you or they or anyone else might do. I controlled it. And now I shall control all Kastria, my creation!
DOCTOR: What about your enemies?
ELDRAD: I shall brush them aside, weak and miserable creatures. What can they do in their decrepitude against the might of Eldrad!
ROKON (OOV.): Eldrad.
ELDRAD: Rokon!
ROKON (on screen): Traitor. You think you have victory within your grasp, but I, Rokon, tell you you have won nothing but defeat.
ELDRAD: So, Rokon, you still live.
DOCTOR: Who is Rokon?
ELDRAD: The so-called King of Kastria. It was he who ordered my obliteration. Me, Eldrad, architect of the barriers! They thought they could destroy me, so I destroyed the barriers.
DOCTOR: You destroyed the barriers?
ELDRAD: Yes.
DOCTOR: So all that business of alien invaders was a lie?
ELDRAD: A necessary lie. A means to an end.
DOCTOR: Why should Rokon want to destroy you in the first place?
ELDRAD: Because he knew I would take his place. I was young and strong, he was weak and old. He wasn't fit to rule Kastria. And he had no appetite for conquest.
DOCTOR: Ah. But you do.
ELDRAD: Yes. I wanted Kastrians to be masters of the galaxy. And now, with me at their head, nothing shall stop us! Every planet within range of our starships shall fall to the power of Eldrad. And now, Doctor, I have an audience with my king. King? Bwahahaha!
SARAH: We've been taken for a ride.
DOCTOR: Come on.
ELDRAD: Rokon. Rokon? You scorn me?
ELDRAD: Your successor?
ELDRAD: What is this? You traitor, you've cheated me of my revenge!
SARAH: But we saw him. He spoke.
DOCTOR: A recording from the past. The King obviously knew there was a chance that Eldrad would return.
ELDRAD (OOV.): He robs me of my destiny.
SARAH: The boobytraps?
DOCTOR: Yes.
ELDRAD: Nevertheless, I am still King. Nothing can stop me. My ambition is invincible.
DOCTOR: Where are your subjects, Majesty?
ELDRAD: Subjects? Stored in the race bank. There's a whole new race of Kastrians, Doctor. A hundred million crystal particles waiting to be placed in the regenerator. And they shall have me as their ruler! They will rebuild the barriers. They will restore the cities. They will replenish the exhausted lands. We will build a new Kastria, and together we shall go forth and conquer the universe!
SARAH: Let's
DOCTOR: Shush.
ELDRAD: Nothing! What stupidity is this? Nothing!
ROKON (on screen): Eldrad! After the premature detonation of the module we knew there was a remote possibility that one day you would return.
ELDRAD: Yes, I'm here.
ROKON (on screen): But let me tell you. After you destroyed the barriers, after we knew for certain that life on the surface was finished, and the alternative was a miserable subterranean existence, the Kastrian race chose final oblivion. And, because they feared you might return to wage eternal w*r throughout the galaxy, they elected also to destroy the race banks.
ELDRAD: Traitor! I gave them life!
ROKON (on screen): So now you are King, as was your wish. I salute you from the dead. Hail, Eldrad, King of nothing.
ELDRAD: Is this my reward? I created this world. It is mine! Mine by right!
DOCTOR: Well, Rokon seems to have solved the problem for us. A drastic solution.
SARAH: I wouldn't want to live down here, and I wouldn't want him as a leader.
ELDRAD: Yes, I shall be King. The Earth people. Very backward and primitive, but they have the necessary aggression. I shall rule them! I shall be their god! And you will take me back!
DOCTOR: Oh, no. That's not in the contract. A one-way ticket only. My obligation to you is over. You're in your own world now.
ELDRAD: You have my ring. Give it to me.
DOCTOR: No, I don't think so.
ELDRAD: It is my key to eternity. Give me the ring!
DOCTOR: Oh well, since you've put it so nicely.
SARAH: Don't.
DOCTOR: Here. Catch.
DOCTOR: Come on, Sarah.
DOCTOR: Down there. Get down there.
SARAH: Why?
DOCTOR: Hold this.
SARAH: What?
ELDRAD: There is no escape.
SARAH: What do I do?
DOCTOR: When I say pull, you pull.
ELDRAD: You will take me back!
DOCTOR: Pull!
DOCTOR: Well, the gravity of the law finally caught up with him.
SARAH: Yeah, that's all very well, but that was a bit rash, giving him his ring back.
DOCTOR: Yes.
SARAH: Oh. Well, what did you give him back, then?
DOCTOR: My magician's stick.
SARAH: Oh.
DOCTOR: Come on.
SARAH: I'll never be warm again. Never, ever, ever.
DOCTOR: No, we're well out of that. Goodbye, Kastria.
SARAH: Do you think that Eldrad, well, do you think that he really is dead?
DOCTOR: Oh, I doubt it. Very difficult to k*ll.
SARAH: Well, I quite liked her, but I couldn't stand him.
DOCTOR: Whoa, easy, old girl, easy. These temperatures must have affected the thermo-couplings.
SARAH: Yes, I know how she feels. I think Kastria must be the coldest planet in the galaxy.
DOCTOR: Oh, rubbish. I've been to much colder places.
SARAH: Oh, big deal. It's all right for you. I'm human. We're not so thick-skinned.
DOCTOR: Where's that astro-rectifier? What did you say?
SARAH: Thick-skinned.
DOCTOR: Oh, good, good.
SARAH: Here.
DOCTOR: Multi-quantiscope.
SARAH: You know, I might as well be talking to the moon. You don't even listen to me.
DOCTOR: Mergin nut.
SARAH: What?
DOCTOR: No, no, forget the mergin nut. I'll have the ganymede driver.
SARAH: There.
DOCTOR: Thank you.
SARAH: Oh, I must be mad. I'm sick of being cold and wet, and hypnotised left right and centre. I'm sick of being sh*t at, savaged by bug-eyed monsters, never knowing if I'm coming or going or been.
DOCTOR: Zeus plug.
SARAH: Oh, I want a bath. I want my hair washed. I just want to feel human again.
DOCTOR: Forget the zeus plug. I'll have the sonic screwdriver.
SARAH: Oh, and boy am I sick of that sonic screwdriver! I'm going to pack my goodies and I'm going home. I said, I'm going to pack my goodies and I am going home! Right! Excuse me!
DOCTOR: What was that you? I don't know why she goes on like this. There's really nothing the matter at all.
DOCTOR: The call. The call from Gallifrey. Gallifrey. After all this time, Gallifrey. I can't take Sarah to Gallifrey. Must get her back home. Must reset the coordinates. South Croydon.
SARAH: Ahem!
DOCTOR: You're a good girl, Sarah.
SARAH: Oh, look, it's too late apologising now. Everything's packed. I've got to go.
DOCTOR: What? How did you know?
SARAH: What?
DOCTOR: I've had the call from Gallifrey.
SARAH: So?
DOCTOR: So I can't take you with me. You've got to go.
SARAH: Oh, come on. I can't miss Gallifrey. Look, I was only joking. I didn't mean it. Hey. Hey, you're not going to regenerate again, are you?
DOCTOR: Not this time. I don't know what's going to happen.
SARAH: You're playing one of your jokes on me, just trying to make me stay.
DOCTOR: No. I've received the call, and as a Time Lord I must obey.
SARAH: Alone?
DOCTOR: Yes.
SARAH: And I'll give your love to Harry and the Brigadier. Oh, and I can tell Professor Watson that you're all right.
DOCTOR: We've landed, Sarah.
SARAH: What?
DOCTOR: We've landed.
SARAH: Where?
DOCTOR: South Croydon. Hillview Road, to be exact.
SARAH: That's my home. Well, I'll be off then. Here.
DOCTOR: Thanks.
SARAH: Don't forget me.
DOCTOR: Oh, Sarah. Don't you forget me.
SARAH: Bye, Doctor. You know, travel does broaden the mind.
DOCTOR: Yes. Till we meet again, Sarah.
SARAH: This isn't Hillview Road. I bet it isn't even South Croydon. Oh. He blew it.
SARAH: Hey, hey. You. He blew it.
`
The Doctor
Tom Baker
Sarah Jane Smith
Elisabeth Sladen
Dr. Carter
Rex Robinson
Intern
Renu Setna
Abbott
David Purcell
Zazzka
Roy Pattison
King Rokon
Roy Skelton
Guard
Robin Hargrave
Professor Watson
Glyn Houston
Driscoll
Roy Boyd
Miss Jackson
Frances Pidgeon
Elgin
John Cannon
Eldrad
Judith Paris
Kastrian Eldrad
Stephen Thorne
Writers
Bob Baker and Dave Martin
Assistant Floor Manager
Terry Winders
Costumes
Barbara Lane
Designer
Christine Ruscoe
Fight Arranger
Max Faulkner
Film Cameraman
Max Samett
Film Editor
Christopher Rowlands
Incidental Music
Dudley Simpson
Make-Up
Judy Neame
Producer
Philip Hinchcliffe
Production Assistant
Marion McDougall
Production Unit Manager
Chris D'Oyly-John
Script Editor
Robert Holmes
Special Sounds
d*ck Mills
Studio Lighting
Derek Slee
Studio Sound
Brian Hiles
Theme Arrangement
Delia Derbyshire
Title Music
Ron Grainer
Visual Effects
Colin Mapson
Producer
Philip Hinchcliffe
Director
Lennie Mayne
Tom Baker
Sarah Jane Smith
Elisabeth Sladen
Dr. Carter
Rex Robinson
Intern
Renu Setna
Abbott
David Purcell
Zazzka
Roy Pattison
King Rokon
Roy Skelton
Guard
Robin Hargrave
Professor Watson
Glyn Houston
Driscoll
Roy Boyd
Miss Jackson
Frances Pidgeon
Elgin
John Cannon
Eldrad
Judith Paris
Kastrian Eldrad
Stephen Thorne
Writers
Bob Baker and Dave Martin
Assistant Floor Manager
Terry Winders
Costumes
Barbara Lane
Designer
Christine Ruscoe
Fight Arranger
Max Faulkner
Film Cameraman
Max Samett
Film Editor
Christopher Rowlands
Incidental Music
Dudley Simpson
Make-Up
Judy Neame
Producer
Philip Hinchcliffe
Production Assistant
Marion McDougall
Production Unit Manager
Chris D'Oyly-John
Script Editor
Robert Holmes
Special Sounds
d*ck Mills
Studio Lighting
Derek Slee
Studio Sound
Brian Hiles
Theme Arrangement
Delia Derbyshire
Title Music
Ron Grainer
Visual Effects
Colin Mapson
Producer
Philip Hinchcliffe
Director
Lennie Mayne