Your orders are understood. You will infiltrate and kill. Infiltrate and kill. Understand? Of course I understand, my dear fellow. Don't fuss so. I am to infiltrate and kill. Infiltrate and kill. I am to infiltrate and kill. What is it, Doctor? I'm not sure, young lady. Is it a plant or some kind of fungus? Ah. Living fungoid, Doctor. Yes, I think this is the moment when discretion is the better part of valour. Let's get back into the ship. How's it, Doctor? They're moving. They're closing in on us. Dean. There are friends here. I obviously don't like the light. Well, thank goodness for that. Now, what's the matter? Who switched the lights on? Who put them there in the first place? It matters as long as they stay on. Well, it does suggest that there are other creatures on this planet. Creatures of intelligence. Come over here. Look. Look, you see? The lights, they form a sort of corridor. Yes, it's a kind of pattern. Yes, you're quite right, my boy, a corridor. Doctor, this could be an ideal place to fight those Daleks. Yes. Yes, well, let's follow it this way. This is the planet Mechanus. All forms of life are to be treated as hostile. Understood. Pass the order. All forms of life to be destroyed on contact. I obey. Is the humanoid robot standing by? It awaits your orders. Our enemies are moving through the jungle. You are to join them. Infiltrate, separate and kill. Yes, yes, I understand. Well, the sooner I get started, the sooner I shall accomplish my mission. We shall follow it as escort. Advise all units. Just a minute. Come along, come along. All right? Yes, fine. We seem to have come to the end of our corridor of lights. Yes. Let me go first. Any Daleks? No. Nothing. Empty. Let's take a closer look. Strange place. Why would anyone construct a complicated system of lights to lead directly to a cave like this? I'm not quite sure, dear boy. There must be a reason for it, just like everything else in the universe. There is a reason for it. Oh, do be careful what you're doing with that. Over here. What have I found? What do you make of that, Doctor? I should imagine it's some kind of weapon. Just hold that for a minute. Doctor, get that doctor closer. Well, that's ingenious, isn't it? It's designed to scare off those fungoid things we saw in the swamp. Very good, my dear, very good. Well, Doctor, with this and that, we are ready for the Daleks. Straight after this flare party, we can pick them off one by one. Just a moment. May I speak? There's something I haven't told you, dear boy. We cannot use this machine in an enclosed area. Otherwise, we shall all go up in smoke. But, Doctor, the Daleks will find this flare path and we'll be trapped here. Let's put the lights out. Now you're talking common sense. Yes, let's find the cables, shall we? Doctor! Doctor, it's me! Let me in! It's me! Over here. I found it. Good. Where? Ah. That's quite safe as well, isn't it? Yes. It's tough. Ah! Someone out there. That noise! That noise, it was... Come on, Doctor! Doctor, that noise, it was... Watch the machine. Watch the machine. The light source has vanished. Patrols will continue to advance eastward. Perceptors register much movement in that area. Alert! Alert! Alert! The patrol will continue. Have I sustained damage? No. The patrol will continue. She must have smuggled herself aboard the Dalek's time machine. So they've arrived. Doctor! You were quick. Oh? Was I? Who was it? Oh, nobody. I, uh... What is it? Where's Ian? Barbara, my dear, Chesterton is dead. Dead? The creatures caught him. I could do nothing. Are you sure? Are you certain that he's not just hurt? Come with me. Perhaps you can help. Come along. Come along. Hurry. About another 20 yards, Doctor, I think. You know, Chesterton, they have an extraordinary range of movement. Extraordinary. Yes. All I'm interested in right now is getting into that cave. We'll be safe. Barbara! Barbara! They found her. Barbara? Where is she? Take a look outside, my boy. Look after Vicky. Barbara? Barbara? Oh, my dear. Oh, come along, child. You're all right. Come along. Come along, my dear. Come along. Hmm? Hmm? My dear girl, what on earth is wrong with you? No. No. Doctor, she's nowhere to be... Vicky, what is it? Ian. I thought... When I... I... You know, I... I... I... I... I... I... I... I... I... I... I... I... No. He must be the doctor or you wouldn't be with him. What are you saying, Vicky? I'm sorry I behaved like that, but when I first woke up I... I thought you must be the robot. Robot? My dear, you... You haven't got a temperature, have you? You come and sit down, Vicky. There is a robot! The Daleks made it exactly like you. A robot exactly like me? Every detail. I heard them giving it orders. They made it to infiltrate our group. They told it to infiltrate and kill. So that's it. This is very serious, Chesterton. Barbara would never have left here unless... unless you or I told her to go. Hmm? They've got her. Barbara. Barbara! You all right, child? Barbara! Barbara! Is this where you left him? No. Oh, come on, Doctor. We must find him. You do doodle so. Barbara! Barbara! Ian! It's all right, Doctor. It's all right. Ah! Ah! Ah! Ah! Ian! Oh! Oh! What's the matter with him? Why did he try to kill me? It's the Doctor. It's a robot. A robot? Yes. A robot the Daleks made. Come on, Barbara. Let's... Let's find the others. Oh! I can't see any sign of Ian. I think he must have gone further than we thought. Barbara! Okay, Vicki. Where's the Doctor? Don't just stand there, Chesterton. That's the robot. Robot, robot, me. You're the imposter. He is the imposter. Then prove it, my dear fellow. Prove it, and we shall all believe you. I don't have to. You mean you can't? Why, you... Albert, put that stick down. Get out of my way! And if I won't? I shall give you the same treatment. Watch him, Chesterton. Watch him. Still insist you're the real Doctor? What, does it matter what I say now? Hm? Hm? Chesterton, now's your chance. Destroy it. Destroy it with the rock. Ah! Susan, don't look this way. It'll be nasty. Ian, don't. That's the Doctor. What? This is the robot. This is the robot. Ah! Stop! Good luck, dear. Hm. Let's get the Doctor. The enemy time machine. With this in our control, they cannot escape. What is that noise? Hostile plant life. Destroy. Destroy. No, destroy. There is no trace of the humans. Or the robot? No. Contact has been lost. We will organize a full-scale search of the jungle at daybreak. Hm. Those things don't look too good, do they, Doctor? No, they're not really encouraging, dear boy. Hm. Oh, we got one consolation. We're all together again. Yes, but I don't mind admitting I feel rather exhausted after all that experience. Why don't you go down and have a rest? Hm. Go on. I'll stay out here. Yes, I don't suppose we can do much in this light. No. You know, it's been dark ever since we landed on this. Yes, well, we'll give it a few hours. It might get lighter. I think I'll take your advice. I can't sleep. Hm. Hm. Hm. Hm. Hm. What's the matter? Hm. Hatchley, don't you in there. Come along, wake up, wake up. Come out here quickly. How beautiful. Yes. I think that was up there all last night, and we never knew. Quite so. And that is where we've got to get to. Hmm? Yes, you bet. Have you got that thing, me Bob? Ah, I'll get it. Well, come along. Come along. Let's go. Come on. Look! Darling, it's coming straight for us. Over there, there's two more of them. Come on, Billy, quick. What do we do now? We must clear this cave as soon as possible. Otherwise we can't work that device. How? That clever Bob can climb out that way. That's impossible. It's sheer. They'd pick us off like flies. The only way is... What do we do? I've got it. The Doctor will have to go out there as the robot. He can put them off the scent. Are you mad? I'm not mad. I'm not mad. I'm not mad. I'm not mad. I'm not mad. Are you mad? Why? The Daleks must know that the robot's dead. They controlled it. Why? You can't be sure of that. Anything that might confuse them just long enough... It would be sheer suicide. Yeah, perhaps you're right, Barbara. Well, Doctor, what... Doctor! Doctor! They are trapped in the rock face. Attack formation! Attack formation! Attack formation! Attack formation! Attack! Section four will enter the cave. Do not deviate. We obey. Section two will circle the cave. Take a position amongst the boulders. And cut off any attempt to escape. We obey. We will take no prisoners. Eliminate on sight. We obey. Move to position. On my command, advance and attack. Align and advance. Advance and attack. Attack and destroy. Destroy and rejoice. Halt! You will be exterminated. I have infiltrated and killed. We may now return to Skaro. You lie! You are not the robot! Doctor! Doctor! That was a foolish thing to do! They know... They know now who's who. Give me that machine. I'll fight against the wall. I'm going to see what I can do with this. Advance and attack. Attack and destroy. You heard what the gentleman said. Let's go. To be continued...