0:00:15 > 0:00:17None of it makes any sense!
0:00:17 > 0:00:20Why would our parents do that - separate us from our twins?
0:00:20 > 0:00:21Shh.
0:00:23 > 0:00:25More to the point - what are they doing with them down there?
0:00:25 > 0:00:30- They're like...lab rats.- You think they're experimenting on them?
0:00:30 > 0:00:32Maybe that's why Mom left with us when we were babies, Noah -
0:00:32 > 0:00:35- she didn't want any part of it. - So why has she come back now?
0:00:35 > 0:00:38So, if it's Gaia's twin that's been acting weirdly with us,
0:00:38 > 0:00:40where's our Gaia?
0:00:40 > 0:00:43- She must be down in the secret zone. - Where's that, again?
0:00:43 > 0:00:45Underneath the castle. You can get to it through the cave.
0:00:45 > 0:00:47Yeah, we'll tell you everything we know,
0:00:47 > 0:00:50as soon as we get back from there - with Gaia. Let's go.
0:00:50 > 0:00:53Hang on, not so fast. Is that the best plan?
0:00:53 > 0:00:55Why don't we talk to her twin first,
0:00:55 > 0:00:58- find out what it is that she knows...- No way!
0:00:58 > 0:01:00She might not be parallel-universe Gaia any more,
0:01:00 > 0:01:02- but she still cannot be trusted. - Slim's right.
0:01:02 > 0:01:04We need to rescue our Gaia, like, fast -
0:01:04 > 0:01:07before they start experimenting on her, too.
0:01:08 > 0:01:09Are you ready?
0:01:09 > 0:01:11Will you look after that for me -
0:01:11 > 0:01:14seeing as you're practically my boyfriend now?
0:01:14 > 0:01:16Sure...
0:01:16 > 0:01:20- We need Lexy.- Lexy?- She's the only one can unlock the doors down there.
0:01:20 > 0:01:21With her eyeball.
0:01:23 > 0:01:25Did he say "eyeball"?
0:01:25 > 0:01:27Where is she?
0:01:27 > 0:01:30Duncan, what's going on? Is that my Gaia in there, or not?
0:01:30 > 0:01:31Let's find out.
0:01:33 > 0:01:35Gaia?
0:01:37 > 0:01:39Gaia?
0:01:39 > 0:01:40She's gone.
0:01:52 > 0:01:53KNOCKS AT DOOR
0:01:55 > 0:01:57KNOCKS AT DOOR
0:02:00 > 0:02:01- You are needed.- Now.
0:02:01 > 0:02:04What for? What's going on? Where are we going?
0:02:04 > 0:02:05We'll explain on the way.
0:02:08 > 0:02:11- I don't want to go down this way, it freaks me out.- Tough.
0:02:11 > 0:02:14- Why can't I try my eye thing on the main door?- Too risky.
0:02:14 > 0:02:16Anyway, how can Gaia be in danger?
0:02:16 > 0:02:19I saw her half an hour ago and she looked perfectly fine to me.
0:02:19 > 0:02:22- Lexy, come on.- Not until you tell me what's going on.
0:02:22 > 0:02:25You're keeping something from me - I know you are.
0:02:26 > 0:02:28OK.
0:02:28 > 0:02:30This may sound a little weird,
0:02:30 > 0:02:32but you know how Noah and Luke are twins?
0:02:32 > 0:02:34Wow, I never knew that(!)
0:02:34 > 0:02:37Well, what if I told you we'd all got twins
0:02:37 > 0:02:40and they're being kept prisoner down in the secret zone?
0:02:40 > 0:02:41Twins?
0:02:41 > 0:02:43And twin Gaia has escaped
0:02:43 > 0:02:45and now our Gaia's the one being kept prisoner.
0:02:45 > 0:02:47There are two of me?
0:02:47 > 0:02:50What are we waiting for? Let's go find them.
0:02:50 > 0:02:53No, Lexy - that's not our mission, OK?
0:02:53 > 0:02:54Lexy!
0:02:54 > 0:02:55CAT SIGHS
0:03:02 > 0:03:05KEYPAD BEEPS HYDRAULIC HISS
0:03:24 > 0:03:26KEYPAD BEEPS HYDRAULIC HISS
0:03:26 > 0:03:28- (Shh, Lexy - keep it down.) - Look at my nails.
0:03:28 > 0:03:31I've broken one and chipped another. They're almost as bad as yours, Cat.
0:03:31 > 0:03:33Idiots! What you doing here?
0:03:33 > 0:03:35What have you done with Gaia?
0:03:35 > 0:03:37The lift...
0:03:37 > 0:03:39Follow me now, if you want her back.
0:03:45 > 0:03:47Gaia, over here!
0:03:47 > 0:03:49Noah!
0:03:49 > 0:03:50Cat, is that really you?
0:03:52 > 0:03:53Let me out.
0:03:53 > 0:03:56- Hurry up and unlock the door. - KEYPAD BEEPS
0:03:56 > 0:03:59I don't understand. This is my room, I should be able to open it.
0:03:59 > 0:04:00KEYPAD BEEPS
0:04:00 > 0:04:02They must have changed the access code.
0:04:02 > 0:04:04- Now what?- Let me try.
0:04:06 > 0:04:09- KEYPAD BEEPS Oh.- What's that?
0:04:10 > 0:04:12Replicates General Winters' iris.
0:04:12 > 0:04:14Lars made them for us.
0:04:14 > 0:04:17We don't have access to the main door,
0:04:17 > 0:04:19so we use these to get in and out of the place.
0:04:19 > 0:04:21Let's hope it works here, too.
0:04:21 > 0:04:23KEYPAD BEEPS
0:04:29 > 0:04:31- Someone's coming.- Go, now!
0:04:35 > 0:04:37With this scanner, we can tell definitively.
0:04:37 > 0:04:40- What does it do, exactly? - You'll see.
0:04:40 > 0:04:42KEYPAD BEEPS
0:04:48 > 0:04:50Gaia?
0:04:50 > 0:04:51Who are you?
0:04:55 > 0:04:57This is your father, Gaia.
0:04:57 > 0:04:59You asked me to fetch him for you, remember?
0:04:59 > 0:05:01What's a father?
0:05:02 > 0:05:03What's that?
0:05:05 > 0:05:06Relax, it won't hurt.
0:05:07 > 0:05:09DEVICE BEEPS
0:05:11 > 0:05:13She's the right one.
0:05:13 > 0:05:15Who made the decision to chip them?
0:05:15 > 0:05:16Lena.
0:05:17 > 0:05:19They're not animals.
0:05:25 > 0:05:26Shh!
0:05:28 > 0:05:30One of us should have gone down there.
0:05:30 > 0:05:32We're more Gaia's friends than Noah and Cat.
0:05:32 > 0:05:35They know that we're around. It makes sense for them to go.
0:05:35 > 0:05:37- You OK, AJ?- Thinking.
0:05:37 > 0:05:41You'll fry your brain, trying to make sense of this, trust me!
0:05:41 > 0:05:43- You know that spyware Dad put on my phone?- He did what?
0:05:43 > 0:05:46What if that's the start of them experimenting on us, too?
0:05:46 > 0:05:49Monitoring us, seeing how we react to things -
0:05:49 > 0:05:51what if all our phones are bugged?
0:05:56 > 0:05:57No...
0:05:57 > 0:05:59But if our parents were keeping tabs on us,
0:05:59 > 0:06:00we would have been busted by now.
0:06:00 > 0:06:03Yeah, let's not get paranoid here, OK?
0:06:05 > 0:06:08And who'd have guessed, Noah and Cat being so tight with Lexy?
0:06:08 > 0:06:10- Yeah, I know.- And how weird is it,
0:06:10 > 0:06:13her being able to open the doors down there with her eye?
0:06:13 > 0:06:16Does she actually have take her eyeball out to do that?
0:06:16 > 0:06:18SLIM CHUCKLES
0:06:18 > 0:06:20- What?- I can't stand this any more.
0:06:20 > 0:06:23Let's go to the cave and wait for them there.
0:06:23 > 0:06:2720 minutes ago, you were insisting you weren't who we think you are.
0:06:27 > 0:06:28What did you mean by that?
0:06:28 > 0:06:31Er... I don't know. I got confused.
0:06:31 > 0:06:35I'm not angry with you, I'm just interested to hear
0:06:35 > 0:06:39what it is you think you know about the castle upstairs.
0:06:39 > 0:06:41Has someone been telling you things?
0:06:42 > 0:06:44Someone must have said something.
0:06:44 > 0:06:46I don't remember.
0:06:47 > 0:06:48Very well.
0:06:50 > 0:06:52I'll have to talk to your mentors.
0:06:53 > 0:06:55I'll have to keep you confined to quarters
0:06:55 > 0:06:57for a little while longer yet, Gaia -
0:06:57 > 0:07:01just until we find out exactly what caused this episode of yours.
0:07:03 > 0:07:05KEYPAD BEEPS
0:07:05 > 0:07:08I don't understand - why couldn't I talk to my dad?
0:07:08 > 0:07:10- Because he's in on it, Gaia. - In on what?
0:07:10 > 0:07:15- We were hoping you'd be able to tell us.- Hey, you're back.
0:07:15 > 0:07:17- Gaia?- Yeah, it really is me.
0:07:20 > 0:07:22It's... It's good to see you.
0:07:22 > 0:07:24- And you.- Hey, good work, you two.
0:07:26 > 0:07:27LEXY COUGHS
0:07:27 > 0:07:30- I mean, "three".- Thank you.
0:07:30 > 0:07:31So come on, guys - what happened?
0:07:31 > 0:07:34Yeah, how one earth did you end up down there?
0:07:34 > 0:07:36It was after we had the space clearing ritual, remember, Slim?
0:07:36 > 0:07:38How could I forget?
0:07:38 > 0:07:41I was headed back to my room and that's when I saw her,
0:07:41 > 0:07:44stood in the corridor, staring at me.
0:07:50 > 0:07:51What are you?
0:07:51 > 0:07:53A girl, like you.
0:07:59 > 0:08:02See?
0:08:02 > 0:08:05- What do you want?- Come with me and I'll explain everything -
0:08:05 > 0:08:06I promise.
0:08:17 > 0:08:18'So I went with her.
0:08:18 > 0:08:20'Weren't you scared?'
0:08:20 > 0:08:22A bit, but somehow I trusted her.
0:08:24 > 0:08:25More fool me.
0:08:48 > 0:08:49KEYPAD BEEPS
0:09:04 > 0:09:06They all have the same names as us -
0:09:06 > 0:09:09Caitlin, Lars, Adam, Gaia.
0:09:09 > 0:09:11- How weird is that?- Not very.
0:09:11 > 0:09:14My dad's so vain, he obviously named us both after himself.
0:09:14 > 0:09:17And then they started asking me all these questions about
0:09:17 > 0:09:18why I'd been brought the castle
0:09:18 > 0:09:21and what I knew about the adults' work there,
0:09:21 > 0:09:23- but I couldn't answer any of them. - Didn't you ask them any questions?
0:09:23 > 0:09:27Well, yeah, I tried, but they didn't really answer them.
0:09:27 > 0:09:31And then the other Gaia suggested we exchange places, just for the night.
0:09:31 > 0:09:33And you agreed?
0:09:33 > 0:09:36I was curious. I wanted to know more about them,
0:09:36 > 0:09:37find out why they were there,
0:09:37 > 0:09:41and I thought it might actually be fun.
0:09:41 > 0:09:43You need to get out more, Gaia.
0:09:43 > 0:09:47But then, the next morning, the other Gaia didn't come back
0:09:47 > 0:09:49and I began to get a bit worried
0:09:49 > 0:09:53and then, things started getting really weird.
0:09:53 > 0:09:55We thank you, Origin, ancient and wise,
0:09:55 > 0:09:58for teaching us the ways of the universe.
0:09:58 > 0:10:00I'm quite into the whole mystic thing myself, actually.
0:10:00 > 0:10:03We thank you, Origin, for the wondrous object -
0:10:03 > 0:10:06the oracle of our destiny.
0:10:06 > 0:10:10- ALL:- We thank you, we thank you, we thank you, we thank you...
0:10:10 > 0:10:12Shall we eat now?
0:10:12 > 0:10:15Although I'm not sure what this is supposed to be...
0:10:15 > 0:10:19- ALL:- We thank you, we thank you, we thank you...
0:10:19 > 0:10:22- You know what? Enough's enough. - We thank you, we thank you...
0:10:22 > 0:10:25- I think I'd like to go home now. - We thank you, we thank you...
0:10:25 > 0:10:28- Did you not hear what I said? - We thank you, we thank you...
0:10:28 > 0:10:29I want to go home.
0:10:29 > 0:10:32- We thank you, we thank you... - Please, please will you stop that?
0:10:32 > 0:10:33GAIA SCREAMS
0:10:33 > 0:10:35You'll bring the mentors. It's OK...
0:10:35 > 0:10:37Get off! Help!
0:10:37 > 0:10:40- Someone, anyone - help! - GAIA SCREAMS
0:10:40 > 0:10:44'I tried to explain that there'd been a terrible mistake,
0:10:44 > 0:10:46'but he wasn't listening...'
0:10:46 > 0:10:48and then I think he must have given me something,
0:10:48 > 0:10:52because the next thing I remember is waking up in the bedroom
0:10:52 > 0:10:54- and the door being locked.- No...
0:10:54 > 0:10:55I kept knocking and shouting
0:10:55 > 0:10:58and the others started getting really angry,
0:10:58 > 0:11:01and they told me to quieten down, but I wouldn't.
0:11:01 > 0:11:04And then, eventually, Dr Morelle came to see me.
0:11:04 > 0:11:07Still thinking you were Gaia from the secret zone?
0:11:07 > 0:11:11But he wasn't sure any more, so then he went to talk to my dad -
0:11:11 > 0:11:15- and the rest, you know.- Do you know what the Origin and the object are?
0:11:15 > 0:11:16I don't understand any of it -
0:11:16 > 0:11:19the weird symbols everywhere, the food, chanting...
0:11:19 > 0:11:21It's just one big nightmare.
0:11:22 > 0:11:25I want to go home now, please...
0:11:25 > 0:11:28Of course you do. I'm sorry, Gaia.
0:11:28 > 0:11:29Come on.
0:11:30 > 0:11:34Hang on, she can't go anywhere looking like that.
0:11:34 > 0:11:37Oh, yeah - bit of a giveaway, I suppose.
0:11:37 > 0:11:39Bit of a fashion disaster, more like.
0:11:47 > 0:11:49Adam, a moment of your time, please.
0:11:49 > 0:11:52Marcus is back, I'm calling a meeting here, 2pm sharp.
0:11:52 > 0:11:54Oh, and Adam...
0:11:54 > 0:11:57Lift the ban on the teenagers going into the village.
0:11:57 > 0:12:00- What? But...- We're expecting several deliveries.
0:12:00 > 0:12:04Better to have them snooping around there than here, don't you think?
0:12:11 > 0:12:13That almost looks as bad as the jumpsuit.
0:12:13 > 0:12:15She'll do. Let's go.
0:12:17 > 0:12:21So, what about my twin, Gaia? You never mentioned her.
0:12:21 > 0:12:22What was she like?
0:12:22 > 0:12:24I didn't see a twin of you, Lexy.
0:12:27 > 0:12:29The other Gaia nearly ruined our plan.
0:12:29 > 0:12:32I should've come back yesterday, like I wanted to.
0:12:32 > 0:12:35You were right, we were wrong. Sorry.
0:12:35 > 0:12:37Did you learn anything new?
0:12:37 > 0:12:38No...
0:12:38 > 0:12:42but they are not working with or for the mentors -
0:12:42 > 0:12:43that much I do know.
0:12:47 > 0:12:50Gaia, you really can't mention any of this to your dad, OK?
0:12:52 > 0:12:56Not just yet, anyway - not until we figure out what to do.
0:12:56 > 0:12:59How about you? Hope you're not thinking of telling tales to Mummy.
0:12:59 > 0:13:00About what?
0:13:00 > 0:13:02The hideous toad who followed me out of the cave,
0:13:02 > 0:13:05giving me grief I could actually do without?
0:13:05 > 0:13:08She's just trying to find out what's going on, like the rest of us, Slim.
0:13:08 > 0:13:09OK.
0:13:09 > 0:13:11Look, I take it back. Chill.
0:13:12 > 0:13:15Thank you, guys...for saving me.