There we are.
Well, what do you think?
I don't know. I can't believe it.
It's so big.
- Where are we? - Oh, it's the Tardis. It's my home.
It has been for a considerable number of years.
What are all these knobs?
What, these?
Instruments. These are for controlling our flight.
Flight?
Well, yes. We travel through time and space.
No, no, no. Don't laugh. It's true.
Your father and Maxtible were working on the same problem,
but I have perfected a rather special model,
which enables me to travel through the universe of time.
How can you?
I mean, if what you say is true, you must be... Well...
How old?
Well, in Earth terms, I suppose I must be about four hundred...
About 450 years old.
Yes, well... Quite.
I think Victoria might find that dress a little impracticable
if she's going to join us.
Jamie, show her where she can find some new ones.
Right.
- This way. - Mustn't stand about.
Try to give us a smooth take-off. We don't want to frighten her.
A smooth take-off?
A smooth take-off? What a nerve!
Hey, Toberman!
Get that big head down!
What's the matter? Have you gone mad?
Doesn't he realise the danger he's in?
Don't laugh. None of us knows what'll happen when we press it.
Especially in this rarefied atmosphere.
Viner, no need to get excited. Can't you keep your servant under control?
If I wish, I can.
Hurry it up, will you, Rogers!
I don't know what you think you're going to find.
According to the map, that should be the entrance to the city of Telos.
I hope you're right. I want to get out of here.
Hopper, you're being well paid for your part in this expedition.
Big deal!
Sorry. We had to make it a pretty big one.
All right. Let's get on with it. We've wasted enough time.
Stand by. Everybody down.
Oh, no.
Well, there you go.
You blast one lump of rock and all you've got is another.
No, wait a minute! Look!
Man, you just blew yourself a pair of doors!
Well, come on! What are we waiting for?
£50 for the first man to open the doors.
Miss Kaftan, I must remind you that I am the leader of the...
- What happened? - I don't know.
Well, he's not going to collect £50 from you or anybody else.
- Quiet. Quiet a minute. - What's that?
Sounded like an engine.
- Something came down there! - OK, Viner. I'll take care of this.
- Jim! - OK. I've got it!
Hold it right there, friend.
If you put it like that, I will.
Hear that, Professor? English.
Yes. All right, Hopper.
Thank you.
Who are you and where are you from?
And you'd better have a good story.
Maybe you'll not get one.
Listen, fella. We're not playing games.
- You'd better listen to him. - What's been happening here?
He was killed as you appeared.
Ah. And you think we did it?
We had nothing to do with the death of this man.
He appears to have been electrocuted.
Trying to open these doors, perhaps?
- He seems to know all the answers. - A wiseguy!
He must be a member of a rival expedition.
Expedition?
We've tried to keep it secret. Unsuccessfully, it appears.
Archaeologist written all over him.
- Really? Does it show? - You see?
It's impossible to keep a secret in the scientific world.
- Doctor, what do you mean? - Tell them, Doctor.
Not until they tell us about their expedition.
This is an archaeological expedition.
We are searching the universe for the last remains of the Cybermen.
Cybermen? You mean they came from here?
Of course. Telos was their home.
This is the entrance to their city.
We know they died out centuries ago, but we don't know why they died out.
Callum, Rogers! Get him back to the rocket. I'll be with you soon.
That's that. Are you coming back with me, Professor?
- What for? - You're not going on with this?
I don't know if they had anything to do with it,
but one of my men is dead. You're not paying that kind of money.
- I suppose that's true. - You think it over.
Come on, let's go. We'll wait for you at the ship.
The problem is to open these doors, right?
- Ha! Brilliant. - That is the problem.
Please return to wherever you came from.
- Not very friendly, are they? - Do as he says.
That became impossible when that name was mentioned - Cybermen.
Cybermen? What are they?
- They're on the same quest! - There's no other reason to come.
- We must stay! - Doctor!
Must we? I don't like the look of those things.
- We shall help you. - Perhaps we don't want help.
That's just it. You obviously do. I can open those doors for you.
It's our problem!
Take your ridiculous expedition off this planet!
We have as much right here as you have.
Of course you have. Mr Klieg, you do not speak for this expedition.
I am its leader. You and Miss Kaftan are only here on sufferance.
- And who's paying for that rocket? - Me!
I made it clear that your financial support
did not entitle you to a say in this expedition!
Of course. It was quite clear.
Was it not, Eric?
Of course. No one questions your leadership.
Good. That's all settled.
- And now we shall open these doors. - What...?
- Careful, man! - Doctor!
Perfectly safe now.
- You'll be killed! - Don't touch him!
- It's beyond my strength. - Let me, Doctor.
I've not had much exercise lately.
Quite. I think here is a man who could open these doors for us.
He is my servant. I will not have him risk his life.
Surely it was for a contingency like this that we brought him with us.
There's no danger now. Unless he's afraid.
No, no. He's not afraid.
- Come on. - No. Wait!
I would be very careful in there if I were you.
Why weren't you both killed?
The poor fellow who died drained all the electricity out of his body.
It's perfectly safe to go in now.
We're wasting time.
Of course. After you, Professor.
But I'd still...
I'd still be very careful if I were you. Very careful indeed.
Come on. Let's join them.
Come on, Victoria.
You look very nice in that dress.
Thank you. Don't you think it's a bit...?
Short? I shouldn't worry. Look at Jamie's.
I'll have you know that... Oh, aye.
Come along. Let's see what the others are doing.
Mercy! Just look at this place.
These controls are of earlier dynasties.
Not so early. Look, John...
I'm quite capable of making my own deductions!
All right.
Be careful. There might be danger.
Don't worry, with Toberman to guard me.
It's more important to watch these strangers.
- I tried to...! - Do not raise your voice.
You look after the Doctor and I will watch the girl.
- And the Scots boy? - Leave him to Toberman.
Eh, Toberman?
- You will be discreet. Understand? - I understand.
- Did you ever see the like of it? - Not exactly, Jamie, but nearly.
Now that we're all here...
Now that we're all here, we'd better take stock of the situation.
This appears to be a dead end.
The only way out is through that hatch.
- Are there no doors? - No. Apart from the entrance.
- And the other two. - Two other doors?
Yes. One in that section and one in that section over there.
Activated, I imagine, by this system here.
Here we are, I think.
Yes, splendid! A simple logical gate.
Doctor, you seem to be very familiar with this place.
Not really. It's all based on symbolic logic.
The same as you use in computers.
The opening mechanism - an O.R. gate, as you call it.
I can see that, but how did you know in the first place?
I use my own special technique.
Really? And may we know what that is?
Keeping my eyes open and my mouth shut.
We are too many to explore together. We'd better divide up.
If you, Mr Viner, would take that door with...
- Jamie. - Jamie and Mr Haydon.
Mr Klieg, the Doctor and myself will be a party.
- What about us? - The women should remain here.
Rubbish! We can make a party.
Certainly. With Toberman to guard us, we need fear no one.
Mr Klieg, will you take them with you?
- I prefer to stay here. - As you wish.
Mr Viner, will you go along with the women?
- If you like. - Get back to the spacecraft by 16.30.
You know the temperature drop at night,
so we'll meet here at 16.25.
If anyone is missing, that gives us an hour to look for them.
Come on. We might as well try that opening over there.
We'd better keep close together.
I'm all right, thank you.
- Come on, Jamie. - Right.
Now to concentrate on this, whatever it is.
This hatch must lead somewhere
and there must be some opening mechanism.
What was that about symbolic logic? Any ideas?
No, not really.
I think it's time we gave Mr Klieg a chance
to show off his archaeological skills.
I love to see the experts at work, don't you?
Come on. Right in.
Where's Toberman?
I sent him to join the others.
We do not need protection now that you are with us.
Yes. Well, shall we commence?
Everything must be carefully measured and recorded.
What is this room?
I don't know. Possibly this is where the Cybermen are made.
I wonder what this is.
Do you mind? You're in my way. Just go over there.
Oh, fiddle!
Could this not be the purpose of the room?
Yes?
A Cyberman would stand in that form and be...
Well, revitalised.
Yes, that's reasonable.
These projectors probably fired in some neuro-electric potential.
That's it. I think you're right.
Revitalising is just what I need.
Mercy! The Cybermen must have been giants!
Please be careful!
In archaeological work, nothing must be touched
until it's been recorded.
All the corridors in here are light, yet there are no windows.
- Alpha-mason phosphor. - Eh?
A lighting system that never goes out.
Cosmic rays bombard a layer of barium...
Aye, that.
Point is, what is this room used for?
Possibly for raising caterpillars, like this one.
Watch out until we know what it is!
It's as dead as a stone.
Well?
The basis of this code is binary to digital conversion,
with an intervening step involving a Whitehead logic.
When this Bourrier series is complete, it's done.
Yes, but why do it at all?
For an archaeologist, you're curiously lacking in curiosity.
Some things are better left undone and this is one of them.
What do you mean by that?
- It's all too easy, isn't it? - Easy?
I wouldn't call this an easy survey.
Everything is designed to keep their secrets insoluble.
Insoluble? Oh, I wouldn't say that.
Take this mathematical sequence. I'm really no nearer to its solution.
I've tried every combination. It's hardly easy.
Yes. Well, what you've done here is mostly right.
- Thank you - You see, any progressive series
can be converted into binary notation.
If you take the sum of the integrets
and express the result as a power series,
then the indices show the basic binary blocks.
Only I wouldn't do it if I were you. I really wouldn't do it.
Of course! You're right!
Look! Sum between limits of one and 91
integral into power series... Yes, yes!
Then you differentiate...
You fool! Why couldn't you leave it alone?
- What's happening? - I don't know.
Perhaps the Cybermen aren't dormant. We must find the others.
Aaagh!
- Did you touch anything? - No.
Keep away from that board. Here, help me.
- One moment. - Now!
We'll need a crowbar to get this off.
It may already be too late.
- That's strange. - What?
- I could swear that thing moved. - You're seeing things, old chap.
Come and look. The control panel is active suddenly.
Don't know which button to press first.
- I wouldn't if I were you. - I think I'll try this one.
Nothing.
Wait a minute. What's happening? It's getting dark.
Hey, look at the far wall!
It's no use. I daren't touch anything.
If I operate the wrong sequence, she'll die.
I must find the logical order. If it's not too late.
- She's still alive! - Thank heavens!
I'll get the others. You stay here.
- But hurry. - I won't be long.
I wouldn't touch the projector controls. Someone might get hurt.
- There must be a way to release it. - Yes. Let me see.
Jamie.
Jamie, don't watch it.
I must.
I must. I can't seem to take my eyes off it.
I don't want to take my eyes off it.
- I don't want to take my eyes... - Stop, Jamie!
Yes, yes. I see it now.
- Are you all right? - Where have I been?
Under some form of hypnosis.
What would Cybermen want with a hypnotising machine?
It must be for something else. Know what it could be?
- What? - Some kind of target.
They used to have something like it on Earth years ago.
How does it work?
- There's a subliminal centre. - Oh, aye.
- A what? - Let's run it, but don't watch.
You work the controls and I'll watch.
Right.
OK. Press the buttons.
I think this is it. Stand by to let her out.
And if you, my dear, would stand well clear.
Right!
Victoria, are you all right?
It's all right. Catch your breath.
It's all right.
I didn't like that very much, Doctor.
I don't expect you did. You'll have to be more careful in future.
Come along. We must see whether Jamie is all right.
There must be some way to get that hatch open.
That must be the control to do it.
The tombs of the Cybermen must be below ground with their records.
If we can't get down there, all our work here
and the sacrifice of that fellow's life will go in vain.
- A great deal more than that. - Pardon?
There's only one explanation. The Doctor.
- Yes? - He didn't give us the complete code.
There must be a further sequence to operate that opening mechanism.
- Let's try to find out. - What could it be?
- Is that all? - Aye.
All except this. What does that do?
I'm not sure, but we'll find out.
I'm going to trace the source of these shapes.
There must be a projector somewhere.
- When I say, press the button. - The big one?
Maybe it works with the others.
- Ready when you are. - OK. Go ahead.
- Jamie, don't touch that control! - I already have.
- What's the matter? - Which one was it?
What?