Doctor Who (1963) s15e06 Episode Script

The Invisible Enemy, Part Two

(DOCTOR WHO THEME) Leave it to me.
I know this place.
NUCLEUS: Destroy.
The reject must be destroyed.
Kill.
Kill.
DOCTOR: I can't.
I won't.
NUCLEUS: You must.
Leela.
-Doctor! -Leela.
I can't stop it.
Got to fight it.
Got to fight it.
Doctor, what's wrong? Doctor, what was all that? I'm fighting for my mind.
Whatever it was that attacked Safran and the others is also affecting me.
-Why not me? -Perhaps because (GASPS) I can feel it gathering strength to attack again.
-The evil one? -Some kind of organism that attacks the mind, the intelligence.
It's trying to take me over, Leela.
No, Doctor, please! I need help.
I must withdraw into myself.
Save strength.
Why not me? No, wait! Contact has been made.
We are one, Safran.
-Then why pursue me? -For the purpose.
The Doctor has not yet succumbed to the power of the Nucleus.
You will prepare the tanks for incubation.
They do not suspect me yet.
I will stay with them to guard the Nucleus and to destroy the reject.
Give me those.
Get down.
-Did you get him? -Yes.
But he almost got me.
My eyes caught a flash from his blaster.
Come with me.
The Doctor's ill, very ill.
He told me to get help.
-But there are no facilities here.
-Well, where, then? NUCLEUS: You must protect the host.
The nearest place is the Centre for Alien Biomorphology.
-But that's in the asteroid belt.
-We'll take the Tardis.
Doctor, we're taking you somewhere to get help, but we need the Tardis.
-Now Where are we going? -The Bi-Al Foundation, asteroid K4067.
What are the coordinates? Doctor, what are the coordinates? Vector 1 9, quadrant 3.
-74 3.
-74 3.
-Patient's name? -Just the Doctor.
-Place of origin? -Gallifrey.
-Ireland? -I expect so.
Thank you, that's all we need for now.
-But where is he? -Level X4, Isolayshun, being datalysed.
-Being what? -Datalysed.
Treatment is already under way.
Are you next of kin? Oh, no.
Uh, yes.
I I don't know, I expect so.
-Where's the Doctor? -They've taken him away to Level X4.
-X4? -Isolayshun.
What's your trouble? Blaster flash, accident.
Eye section, straight through.
They'll deal with you there.
I'll find you later.
Can I be with the Doctor? Not until Professor Marius has had a chance to examine him.
Marius? He's our specialist in extraterrestrial pathological endomorphisms.
-Oh.
-Wait over there, please.
(BEEPING) Blithering idiots, the pair of you.
This man is in a self-induced coma, there's absolutely nothing wrong with the fellow.
Oh, look at him.
He's probably one of those good-for-nothing spaceniks.
Now why have I been sent for? Tell me that.
Hmm? Why? Complete and utter waste of time.
-Excuse me, sir.
-What, what, what, what, what? K9 indicates that the That the patient is not a member of the human race.
Nonsense.
Well, see for yourself.
Look, two hearts.
Symbiotic, self-renewing cell structure.
-Is this right, K9? -Affirmative, master.
Is he now? -Point of origin? -Beyond the solar system.
-Thank you, K9.
-Master.
Nurse, let's get an encephalograph out on him, hmm? (K9 BEEPS) Well, well, what is it? Unidentified viral-type infection with noetic characteristics, at present seated in the mind-brain interface and therefore having no ascertainable mass or structure, master.
Interesting, most interesting.
It isn't every night that we come up with a brand-new infection, -is it, Parsons? -No, sir.
-Hello.
-Good evening.
-Find anything? -Not yet, my boy, but we will, we will.
(DOCTOR SIGHS) (ENCEPHALOGRAPH BEEPS) -Ah, Doctor, I see.
Hmm.
-Yes.
What have you found? -Cataleptic trance? -Yes.
-Self-induced? -Yes.
-Huh.
Why? -Self-preservation.
Whatever it is I'm suffering from seems to thrive on intellectual activity.
Oh, I see.
You mean that the harder you think, the more of a grip it seems to take? Right.
Non-thinking is the only way to shake it off.
But I can't stay mindless for eternity, can I? Oh, no, I take your point.
I take your point.
-Now, my computer here, he's -Hello.
-Hello.
-How are you? Well, he seems to think that it's noetic in character, that means it's only detectable during consciousness.
-I know what noetic means.
-I'm sorry.
-Mind-brain interface.
-Well, if it exists But of course, how stupid.
That's why it attacked the Tardis computer first.
It was showing the greatest amount of mental activity, I was just idling, so to speak.
-When was this? -When we were first attacked.
We were on our way to Titan.
I assumed it was just a static build-up.
Then, when I checked the computer, it jumped into my mind, -and that explains why Leela was -Hmm? Why Leela was unaffected.
Have you met Leela? -No.
-She's all instinct and intuition.
-Oh.
-That's why the virus rejected her.
Of course, I begin to see it all now.
Well, it's possible, it's possible.
Was anyone else exposed to it? Yes.
The entire crew on Titan.
Well, one exception.
The supervisor, man called Lowe.
Supervisor Lowe has been seen in the eye section.
-Are you sure? -Affirmative.
Are you sure that he was the Oh.
Oh, dear, he's gone again.
I want him kept under constant observation.
-See to it, K9.
Full monitoring.
-Affirmative, master.
Now, let's see if we can find this chap Lowe, just in case he's a carrier.
-Come along, Parsons.
-Coming, sir.
-How did this happen? -Accident on Titan.
Accident? What sort of accident? -Well, let's have a look at you.
-Certainly.
Contact has been made.
-Doctor! -Negative, negative, negative.
No entry, no entry.
-Look, whatever you are -I am K9 and I am warning you.
Look, I came to see the Doctor.
I arrived with him.
I too have offensive capability.
You have been warned.
Retreat, retreat.
Patient in total isolation.
Contagion risk.
Retreat, retreat.
-Who are you? -I am Leela.
-Ah, yes, of course, the Doctor's aide? -I think so.
K9, memorise.
Friend.
Memorised.
Friend.
Is that tin thing something to do with you? That tin thing is my best friend and constant companion.
He's a computer.
You see, on Earth, I always used to have a dog.
But up here, the weight penalty Well, it's just not possible.
So I had K9 made up.
He's very useful, he's my own personal data bank.
He knows everything that I do, don't you, K9? Affirmative, and more, master.
I'm afraid there's not much I can tell you about the Doctor yet.
You know, I should like to have you scanned and datalysed.
Just to see why you are immune.
You see, if we can isolate that factor, we can inoculate against it.
-You get it? -Sorry? Yes, perhaps it is a matter of intelligence.
Right, well, what about this Lowe chap? He was in the eye section, sir.
But now he's disappeared.
And the consultant.
-Who are they? -Doctors.
Cruikshank and Hedges.
Get them here.
Cruikshank, Hedges, interesting case here.
Come and have a look.
What is it? Now! Contact has been made.
Contact has been made.
A place has been found most suitable for our purpose.
Titan is being prepared as a hive.
Meanwhile, our duty here is twofold.
To guard the Nucleus, which is in the mind of one called Doctor, and to make contact with the best minds.
When we leave for incubation on Titan, all rejects will be destroyed.
-Do you understand? -We understand.
Contact must be made.
For the purpose.
Virus contamination would seem to be instant and total.
If there's anything unique in her metabolism, the scan will detect it.
Negative on immunity, master.
-There must be something.
-What if there isn't? But he's our only guinea pig.
He's the only one with any resistance to it.
I can't allow him to be taken over like those poor devils on Titan.
No, if there's no immunity factor in Leela, I will just have to operate.
No anaesthetics.
But keep them handy.
K9, monitor the brain.
If he shows signs of emerging from the coma, warn me immediately.
Otherwise, the shock might kill him.
Affirmative, master.
NUCLEUS: Lowe.
Lowe, I am endangered.
The host is threatened.
We must act before it is destroyed.
Emergency, all stations.
All stations, emergency.
Shuttle approach on collision course, out of control.
All medical personnel, stand by.
Emergency, emergency.
Now? Why now? -We'll have to go, sir.
-Yes, yes, I know we have to go.
K9, stay in charge.
You stay with him.
No one is to come into contact.
Have you got that? No one.
-Affirmative.
-All right.
-MARIUS: Come along, Parsons.
-Coming, sir.
(ALARM BLARING) -What was that? -There's been a crash.
A shuttle.
They've gone to help.
On level below.
-This level now completely cut off.
-What? That way is blocked.
We have to get to Level X4.
-There must be other ways.
-The service shaft here.
-It will take longer.
-Then hurry! All available personnel to X3, to X3, accident zone.
-I don't think that was an accident.
-Why? It must be something to do with whatever's in my head.
Can I have a word with you? Where are you going? -I think I'm needed elsewhere.
-Mmm.
K9, cloning techniques.
Give me a rundown, state of the art, so far.
Cloning.
Cloning is replication, making a copy of an individual from a single cell of that individual.
Clones.
Clones retain characteristics of original organism.
Go on, go on! Successful experiments first carried out in the year 3922.
If these two unfortunates have contracted the virus, we must assume that they all have.
But if we attempt treatment, the disease will spread like wildfire and wipe out the entire Foundation.
Everybody back.
Clear the area.
Get everybody out of here.
I want the whole section cryogenically cocooned until we find out more about the nature of this virus.
-Get out the helium pumps.
-Yes, sir.
Parsons, come with me.
Destroy her! That's the reject! LEELA: Reject yourself.
Hurry, K9, hurry.
At present, cloning procedure is possible, but unreliable.
It's Lowe, he's got the disease.
Get inside quick, I'll cover you.
Replicates do not maintain their existence for long because of possible unsolved psychic stress problems.
-How long? How long? -Longest recorded clone life, ten Ten minutes, fifty-five seconds.
Professor Marius, could you clone me? Certainly.
The Kilbracken technique is very simple.
But it's a circus trick, it's of no medical value.
Could you clone me now? -Now? -Yes.
Because if you don't clone me now and the virus gets to me, it'll take the whole centre with it.
Can't hold them off any more, out of ammunition.
-K9? -Master? -Kalaylee! -Affirmative.
What does that mean? He knows.
(GUNS FIRING) We'll never get through this way.
-Is there a visiphone? -In my office.
DOCTOR: Hurry, Marius, hurry.
Now, you must realise, Doctor, this is not in any real sense a clone, but a short-lived carbon-based imprint, -a sort of three-dimensional photograph.
-Leela, I shall need Leela.
Leela? What? Why Leela? What does he mean, he needs me? Ah, it must be because you are immune.
-I think he wants you cloned as well.
-But what will happen to me? -The real me? -Nothing, nothing at all.
-But you said it was just short-lived.
-Oh, yes.
A permanent clonal copy is theoretically possible, but it would take years to achieve because of the experiential gap.
Now, you see, in this way, we managed to transfer both heredity and experience, but the transfer is unstable.
What? Well, it means that your photocopy twin will deteriorate and expire after a maximum life of 1 0 or 1 1 minutes.
Oh, well, in that case, if you do not mind, I will not stay to see.
Just as you wish.
-Oh, Professor? -Yes, now what? If you need me, I shall be with K9.
Yes, yes, yes, yes.
(BEEPING) Doctor, where are you going? Where are you going? Just you trust me, Professor, just trust me.
Doctor -Which one was that? -That was the Doctor two.
-Can you explain? -Affirmative.
The Kilbracken cloning technique replicates from the single cell as a short-lived carbon copy.
Efficacy of individuation not completely guaranteed.
Can you explain simply? Negative.
Medic.
NUCLEUS: Release this body.
You cannot prevail.
I am the one.
It is my purpose.
It is my destiny.
Let me go, you fools.
-NURSE: Shall we sedate him? -Not yet, not yet.
But the danger of contagion, sir.
No, Parsons, we would all have caught it by now.
If the Doctor is right, sir, and the virus has intelligence, there must be some reason for choosing him.
Yes, yes, I think we could be dealing with some kind of leader.
NUCLEUS: My purpose, you must not delay my purpose.
The place of the hive is ready.
Release me! Professor Marius, listen to me.
-You must release the Doctor.
-Never! I warn you.
We are in control of the entire centre.
If you do not do as I say, I shall destroy your Foundation.
-That was Doctor two.
-Affirmative.
You have two minutes in which to decide.
Either give us the Doctor, or your Foundation will be wiped out! Doctor, what are you doing? We've just had an ultimatum.
Don't you worry, Professor, if this doesn't work, the whole place will be destroyed anyway.
What is it? It's a Relative Dimensional Stabiliser, RDS.
-What does it do? -It's part of a Tardis control system, the part that allows me to cross the dimensional barrier.
It's quite simple, really.
It means I can change shape, large or small, as I wish.
Yes.
-Won't keep you a moment.
-Why have I been left -Now, listen, Professor.
-Hmm? You operate the RDS.
We'll be reduced to micro-dimensions.
You'll then scoop us both up and inject us into my master-print there.
-Any questions? -Yes, why are you taking Leela? Because she's immune and because she's a huntress.
Of course.
Well, get on with it.
There's not much time.
Is there anything that we can do meanwhile? Yes, just stay here and hope we come back with the antidote.
And Professor Yeah.
when we emerge, we'll be coming out through the tear duct.
Right.
Good luck.
(BEEPING) -K9, do I really look like that? -Affirmative.
MARIUS: Well, here we go.
(VISIPHONE BEEPS) Your time is up.
Surrender the Doctor! Pleasant journey, Doctor.

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