0:00:02 > 0:00:04The Sparticle Project was switched on today.
0:00:04 > 0:00:07All our teachers hid from us. It was so cool.
0:00:07 > 0:00:10- The world is full of children. - What are we going to do?
0:00:10 > 0:00:13- Anything we like?- What are you up to?
0:00:13 > 0:00:15- Anything I want.- Leave her alone.
0:00:15 > 0:00:18Kids hanging out, looking after each other.
0:00:18 > 0:00:20Stick together. We need space, food,
0:00:20 > 0:00:23and a door to lock to keep out trouble.
0:00:23 > 0:00:25It's the end of the world as we know it.
0:00:40 > 0:00:42CAR ALARM BLARES
0:00:57 > 0:01:00I'm trying to find out what the Sparticle Project is.
0:01:00 > 0:01:03The internet's not working.
0:01:03 > 0:01:08No internet, no mobile phones, no TV or no parents.
0:01:08 > 0:01:10Which is worse do you think?
0:01:10 > 0:01:14Um, no mobiles. Hang on! No TV.
0:01:18 > 0:01:22Hello, City Hotel? A smile's our way to make your day!
0:01:28 > 0:01:31Where've you all gone?
0:01:33 > 0:01:34Bread's ready!
0:01:38 > 0:01:40Aargh! You've baked a brick!
0:01:40 > 0:01:42How good's your pancake then?
0:01:42 > 0:01:46Mmm, crunchy. Eggshells.
0:01:46 > 0:01:49Argh.
0:01:49 > 0:01:52- We've got to stop wasting food. - You sound like my mother.
0:01:52 > 0:01:56I AM your mother, and everybody else's, or hadn't you noticed?
0:01:56 > 0:01:57Pink rice pudding anyone?
0:02:00 > 0:02:03Would you like a lemon with that?
0:02:07 > 0:02:11It's Kat, she's come back! Unlock the doors.
0:02:11 > 0:02:14Sadiq said not to let anyone else in.
0:02:14 > 0:02:16Sadiq's not around.
0:02:16 > 0:02:19Just for a minute, Reese...please?
0:02:29 > 0:02:32The tribe's closed.
0:02:32 > 0:02:34Remember?
0:02:34 > 0:02:39Let me out then, I don't want to be in your stupid tribe.
0:02:39 > 0:02:42I'll take my own chances.
0:02:42 > 0:02:44Suit yourself, short stack.
0:02:52 > 0:02:54Come and get your little friend.
0:02:58 > 0:03:02Where were you? I came back to the loading bay, and you were gone.
0:03:02 > 0:03:05I had to lay low for a while, there's a gang hanging around.
0:03:05 > 0:03:07Come on, let's get inside.
0:03:09 > 0:03:10This is so cool.
0:03:10 > 0:03:12I love triangular spaces,
0:03:12 > 0:03:15they've got such great symmetry. I'm well into my symmetry.
0:03:15 > 0:03:19Did you know for every particle there's an invisible twin?
0:03:19 > 0:03:22A super symmetrical particle or sparticle?
0:03:22 > 0:03:23Umm. Fascinating.
0:03:23 > 0:03:26Look, the tribe's closed. Sorry.
0:03:26 > 0:03:29We can't let everybody and anybody in.
0:03:29 > 0:03:32But I'm not just everybody or anybody.
0:03:32 > 0:03:35My father is Henry Barker the famous physicist!
0:03:35 > 0:03:40No! Not THE Henry Barker!
0:03:40 > 0:03:42I don't care.
0:03:42 > 0:03:45None of that matters now, does it? They've all vanished.
0:03:45 > 0:03:48Sadiq, the pancakes are disgusting.
0:03:48 > 0:03:51- Sadiq, I think we should let Kat join.- Give it up.
0:03:51 > 0:03:53Please!
0:03:56 > 0:03:58- Can you cook?- I'm a girl so of course I can.
0:03:58 > 0:04:00None of us can.
0:04:00 > 0:04:04You're unbelievable! Do you want me to do your washing as well?
0:04:04 > 0:04:05Oh, yeah, if you don't mind.
0:04:05 > 0:04:07Laundry's round the back. Here.
0:04:07 > 0:04:11- Do you want to start with this. - Do you know what, we don't need you!
0:04:19 > 0:04:21We need to find more about The Sparticle Project.
0:04:21 > 0:04:27- It's important we find out about it and Kat's dad.- Not now!
0:04:42 > 0:04:45- All right?- What's it to you?
0:04:45 > 0:04:47Just making conversation.
0:04:47 > 0:04:49Them lot didn't seem to want to.
0:04:49 > 0:04:51Little lad... he your brother, is he?
0:04:51 > 0:04:56No, but I said I'd look after him until his mum gets back so...
0:04:56 > 0:04:58And now Sadiq won't let you in.
0:05:00 > 0:05:02- I'm old enough to manage. - I bet you are.
0:05:02 > 0:05:04The world's changed.
0:05:04 > 0:05:06It's not safe to be on your own any more.
0:05:06 > 0:05:09I looked out for you last night, but you legged it.
0:05:09 > 0:05:10I didn't mean to scare you.
0:05:10 > 0:05:13- You didn't.- What's your name?
0:05:13 > 0:05:17Katherine, but everyone calls me Kat.
0:05:17 > 0:05:21That's my favourite animal.
0:05:21 > 0:05:23You hungry? We've got breakfast cooking.
0:05:23 > 0:05:26- We?- Yeah, me and my gang.
0:05:26 > 0:05:28Come on.
0:05:28 > 0:05:29I won't bite.
0:06:14 > 0:06:16Hey, Lemonhead,
0:06:16 > 0:06:18get my girl a hotdog.
0:06:24 > 0:06:29- Thanks.- Do you want one?
0:06:29 > 0:06:31- Is it all right?- Sure.
0:06:31 > 0:06:32Come on then.
0:06:35 > 0:06:36Where you stopping tonight?
0:06:36 > 0:06:41- Same place as last night. - If someone else ain't bagged it.
0:06:41 > 0:06:42We're on the move later on.
0:06:42 > 0:06:44Somewhere a bit more cosy.
0:06:44 > 0:06:47Why don't both of you come with us?
0:06:47 > 0:06:50- You're asking us to join your gang? - Sure.
0:06:50 > 0:06:53You're smart, and tough. And I need a deputy.
0:06:53 > 0:06:55Plus I like you,
0:06:55 > 0:06:57a lot.
0:06:57 > 0:06:59Oi!
0:07:06 > 0:07:08- Thanks.- So what do you reckon?
0:07:08 > 0:07:11I'll take of both of you.
0:07:14 > 0:07:17- All right.- All right.
0:07:22 > 0:07:24Can I talk to you about the Sparticle Project yet?
0:07:24 > 0:07:27- It's important. - PHONE RINGS
0:07:27 > 0:07:30All the phone lines are dead.
0:07:30 > 0:07:34- Someone's ringing from inside the hotel.- Ami, get the phone!
0:07:38 > 0:07:41Er, hello. Room service?
0:07:41 > 0:07:45Yes, OK, uh-huh, yep.
0:07:45 > 0:07:48Wants bacon, egg and orange juice.
0:07:48 > 0:07:51- So do I!- Can I have your room number, please?
0:07:53 > 0:07:57- There's a woman in room 35. - Thank you.
0:07:57 > 0:07:59A woman? Are you sure?
0:08:13 > 0:08:17The Sparticle Project, exhibition at the library.
0:08:28 > 0:08:30Room service.
0:08:36 > 0:08:38Who are you?
0:08:38 > 0:08:41I just thought Mum and Dad let me sleep.
0:08:41 > 0:08:44I get really bad jetlag. We travel a lot.
0:08:44 > 0:08:47Are you saying I slept through it all?
0:08:47 > 0:08:50I reckon UFOs came down and beamed them all up.
0:08:50 > 0:08:52Never saw no spaceships.
0:08:52 > 0:08:55I don't care where they are. I love it not telling me what to do.
0:08:55 > 0:08:57Pack it in, Ami.
0:08:57 > 0:08:59Yes, Sadiq.
0:08:59 > 0:09:02Sadiq? It's that Callum again.
0:09:06 > 0:09:08- What's he doing here? - He must want something.
0:09:08 > 0:09:10- And I bet I know what it is.
0:09:10 > 0:09:12It's this place.
0:09:12 > 0:09:15We've got to check the doors and entrances are secure.
0:09:15 > 0:09:16And quickly.
0:09:16 > 0:09:19Jordan, Jeffrey, take care of the lifts and the loading bay.
0:09:19 > 0:09:22Tia, Frankie, Ami, you're coming with me.
0:09:22 > 0:09:24Wait, wait, where's Reese?
0:09:24 > 0:09:27Must be in reception on that computer.
0:09:27 > 0:09:29All right. Let's go! Move it!
0:09:35 > 0:09:37BANGING
0:09:39 > 0:09:44- It's locked.- That's because we don't have a swipe card.
0:09:44 > 0:09:46- How are we going to get one? - Give it a rest.
0:09:46 > 0:09:49Why don't you try being part of the solution
0:09:49 > 0:09:51instead of being part of the problem?!
0:09:51 > 0:09:53Just get out of the way!
0:10:33 > 0:10:35Hello, Blondie.
0:10:35 > 0:10:36Do you remember me?
0:10:36 > 0:10:40- What are you doing in our car park? - Wasn't aware it was your car park.
0:10:40 > 0:10:43We're not stopping.
0:10:43 > 0:10:46- You tell Sadiq that, all right? - I will.
0:10:49 > 0:10:52- Where are you going?- To the library.
0:10:52 > 0:10:57You haven't seen a girl leaving the hotel? With a little boy?
0:10:57 > 0:10:59I need to ask her about her dad.
0:10:59 > 0:11:02- Yeah, we have.- No, we haven't.
0:11:02 > 0:11:06- Oh. No, we haven't.- Well, if you do,
0:11:06 > 0:11:08tell her I'm looking for her.
0:11:16 > 0:11:18We have seen her. She's over there.
0:11:18 > 0:11:21I know that, Lemonhead. But I am thinking, so shut up.
0:11:21 > 0:11:25I don't know why I couldn't just grab that swipe card off Blondie!
0:11:25 > 0:11:29- I thought you said we were taking over the hotel tonight.- We are.
0:11:29 > 0:11:30Then we need her swipe card.
0:11:30 > 0:11:34- No, we just need Blondie. - I don't understand.
0:11:34 > 0:11:37That's why you do all the jobs for me that no-one else would.
0:11:37 > 0:11:39You're a complete meat head.
0:11:39 > 0:11:42Thanks, Callum.
0:11:42 > 0:11:45Here you go. Present.
0:11:45 > 0:11:48Oh, Thanks, Callum. Agh! Urgh.
0:11:54 > 0:11:57Got it. Follow me.
0:12:01 > 0:12:03Kat.
0:12:06 > 0:12:08I think I've fixed the gears.
0:12:08 > 0:12:12Thanks. That blondie from the hotel was looking for you.
0:12:12 > 0:12:16- I didn't know where you were.- Oh, Sadiq probably sent her to apologise.
0:12:16 > 0:12:18Nah. Something about your dad.
0:12:18 > 0:12:21Really? I wonder what she wanted.
0:12:23 > 0:12:27If you hurry you'll catch her. Said she was going to the library.
0:12:27 > 0:12:28We'll look after Liam.
0:12:28 > 0:12:30Won't we, Lemonhead?
0:12:35 > 0:12:38Anyone find her?
0:12:38 > 0:12:40When we secured the place, we forgot one thing.
0:12:40 > 0:12:44To check that Reese wasn't on the outside. With Callum.
0:12:44 > 0:12:47- But the front doors are locked. - The lift swipe card is missing.
0:13:21 > 0:13:23The Sparticle Project.
0:13:41 > 0:13:43Go away!
0:14:12 > 0:14:13Emily! Emily!
0:14:17 > 0:14:19Mummy's looking for you!
0:14:29 > 0:14:31Please, where are you?
0:14:31 > 0:14:34The game of hide and seek finished a long time ago.
0:14:34 > 0:14:36I thought Luke might have come here.
0:14:39 > 0:14:42- Emily...- Always reading. - Are you here?
0:14:42 > 0:14:43Somebody's taken the children!
0:14:43 > 0:14:47We're here, we're all here. We're safe.
0:14:47 > 0:14:49..Here when she disappeared....
0:14:49 > 0:14:51It's the last place I could think of...
0:15:11 > 0:15:13- Is it really you?- You're crazy.
0:15:13 > 0:15:15Why were you dancing with yourself?
0:15:15 > 0:15:17I've got to go.
0:15:17 > 0:15:19No, you can't do this.
0:15:19 > 0:15:21What's your name?
0:15:21 > 0:15:28- Reese.- OK, Reese, stop shaking and start talking.
0:15:29 > 0:15:31What is a sparticle?
0:15:31 > 0:15:36Well, every particle has an invisible twin that you can't see.
0:15:36 > 0:15:42So, particle - super symmetrical particle or sparticle.
0:15:42 > 0:15:45So what was The Sparticle Project for?
0:15:45 > 0:15:47Well, Dad has a theory.
0:15:47 > 0:15:49Our universe is in fact just one of many
0:15:49 > 0:15:52and we're all existing in different dimensions
0:15:52 > 0:15:54just invisible to one another.
0:15:54 > 0:15:58OK, so we're on one dimension over here.
0:15:58 > 0:16:02But there is another one over here.
0:16:02 > 0:16:03Only we can't see it.
0:16:03 > 0:16:07So that's what The Sparticle Project was built for,
0:16:07 > 0:16:10to try and see into these parallel dimensions.
0:16:10 > 0:16:12I think I just did.
0:16:12 > 0:16:17Kat, I think I just saw the grown-ups.
0:16:17 > 0:16:21- Here.- Here?
0:16:21 > 0:16:23In this library?
0:16:23 > 0:16:27All the grown-ups in the world are here in this library?
0:16:27 > 0:16:30No, just the one's in the library, like us.
0:16:30 > 0:16:34You know, it's like they were here, I was here.
0:16:34 > 0:16:37We were next to each other but invisible to each other.
0:16:37 > 0:16:39I don't believe you.
0:16:39 > 0:16:40Really I did.
0:16:40 > 0:16:44The mum, she had this weird coloured hair
0:16:44 > 0:16:46and she wasn't wearing any shoes.
0:16:46 > 0:16:48What if there are little spy holes
0:16:48 > 0:16:51between our dimension into parallel ones?
0:16:51 > 0:16:52You mean like wormholes?
0:16:52 > 0:16:56Yeah! What are they?
0:16:58 > 0:17:02They're little tears in the fabric of time and space.
0:17:02 > 0:17:05Kat, what if I just saw into another dimension
0:17:05 > 0:17:09where all the grown-ups are? That would explain everything.
0:17:09 > 0:17:12Everything, and nothing.
0:17:12 > 0:17:14This is way beyond any science I've ever heard of.
0:17:14 > 0:17:16But if the grown-ups aren't here
0:17:16 > 0:17:18then they must be somewhere else.
0:17:30 > 0:17:31Wait.
0:17:33 > 0:17:37What colour hair did you say that mum had?
0:17:37 > 0:17:40Red. And her feet were bare.
0:17:43 > 0:17:48That's her. Do you believe me now?
0:17:50 > 0:17:54Scientists work on...on proof and...and evidence,
0:17:54 > 0:17:59and being able to recreate things and can you do that for me?
0:17:59 > 0:18:03Er... I'm not really sure I want to.
0:18:03 > 0:18:05Then I'm sorry. I've got to go.
0:18:25 > 0:18:27Kat, you're back.
0:18:33 > 0:18:35- Ladies...- Bye then.
0:18:35 > 0:18:40- No! Please come up to the hotel. - I'm not welcome there.- You are here.
0:18:40 > 0:18:43And I thought I was the geek.
0:18:43 > 0:18:45So you'll come? Please, Kat.
0:18:45 > 0:18:48You're the only one who knows what I saw,
0:18:48 > 0:18:51and the only one who knows about The Sparticle Project.
0:18:51 > 0:18:57I need you, and they don't know it yet, but they need you too.
0:18:58 > 0:19:00Fine by me.
0:19:02 > 0:19:06Blondie needs a hand with all these books.
0:19:06 > 0:19:09Just make sure you come straight back down after, yeah?
0:19:09 > 0:19:11Before I miss you.
0:19:18 > 0:19:21Nice one. Using your girlfriend like that.
0:19:21 > 0:19:24She's not my girlfriend, you idiot.
0:19:24 > 0:19:27She's a way of getting us into the hotel
0:19:27 > 0:19:29and once we're in,
0:19:29 > 0:19:31she's history.
0:19:31 > 0:19:34Nice one.
0:19:38 > 0:19:41Right, Reese has been taken hostage and Callum's on his way.
0:19:41 > 0:19:44Everyone has to be ready. This is our best chance.
0:19:44 > 0:19:46You mean this is our only chance.
0:19:46 > 0:19:49We've got Plan B.
0:19:49 > 0:19:51I feel, like, so reassured.
0:19:51 > 0:19:55- On my cue. Right?- ALL: Right.
0:19:55 > 0:19:57GO!
0:19:59 > 0:20:00Sadiq! Stop!
0:20:04 > 0:20:06- Reese!- Hi.
0:20:18 > 0:20:24I just wanted to find out more about The Sparticle Project, I'm sorry.
0:20:24 > 0:20:29It's all right. I'm just relieved it wasn't Callum, that's all.
0:20:29 > 0:20:32Want to tell us what you found out?
0:20:32 > 0:20:35No, no, it's OK.
0:20:35 > 0:20:36Maybe later.
0:20:42 > 0:20:43KNOCK ON WINDOW
0:20:43 > 0:20:46Callum!
0:20:48 > 0:20:51Sadiq! Callum needs help, he's bleeding. Callum, what happened?
0:20:51 > 0:20:55I fell over these handlebars onto a load of broken glass.
0:20:55 > 0:20:58I hurt my arm. I've really slashed it bad.
0:20:58 > 0:21:01Sadiq! Open the door! He's really hurt!
0:21:01 > 0:21:04Where's his gang? They should be looking after him.
0:21:04 > 0:21:06Check the CCTV!
0:21:08 > 0:21:12They found out about some fairground that was working proper.
0:21:12 > 0:21:16- They've ridden off and left you? - Kat, help me.
0:21:16 > 0:21:18Reese? Is the coast clear?
0:21:21 > 0:21:22I can't see anyone.
0:21:32 > 0:21:34I don't trust this. Something's wrong.
0:21:34 > 0:21:36We're watching someone bleed to death.
0:21:36 > 0:21:39- If you won't let him in, then let me out and I'll help him!
0:21:42 > 0:21:44It's OK, Callum, I'm coming.
0:21:49 > 0:21:52Let me look at your arm, we've got to stop the bleeding.
0:21:56 > 0:22:00What's wrong?
0:22:00 > 0:22:02Callum?
0:22:05 > 0:22:07It's fake blood.
0:22:13 > 0:22:15They tricked us! They're coming!
0:22:15 > 0:22:18Plan B! Plan B! Plan B!
0:22:24 > 0:22:27- No!- Great job, Kat.
0:22:27 > 0:22:29Well done.
0:22:29 > 0:22:31THEY CHANT
0:22:38 > 0:22:39Right!
0:22:45 > 0:22:48Come out, come out, wherever you are!
0:22:51 > 0:22:54- Search the hotel! - You two, with me now!
0:22:54 > 0:22:57- Let's go.- Let's show these guys who's boss.
0:23:01 > 0:23:03OK. Ready?
0:23:10 > 0:23:13GROANS OF PAIN
0:23:22 > 0:23:24Get out of here, go!
0:23:24 > 0:23:26Get her!
0:23:26 > 0:23:28HE SCREAMS
0:23:28 > 0:23:31Blast them!
0:23:32 > 0:23:33Drink anyone?!
0:23:41 > 0:23:42Ugh! That's disgusting!
0:23:48 > 0:23:49How do you feel?
0:23:49 > 0:23:51What do you think you're playing at?
0:23:53 > 0:23:55Watch out!
0:23:55 > 0:24:00- Didn't expect that one, did you? - Come on, boys, let's go.
0:24:09 > 0:24:12All right, Sadiq. Let's settle it.
0:24:12 > 0:24:16You and me, old style.
0:24:16 > 0:24:19You're on.
0:24:26 > 0:24:30- That's not old style. - No, it's my style.
0:24:38 > 0:24:41It's over, Callum.
0:24:41 > 0:24:44Give up and get out.
0:25:06 > 0:25:08HE SNIFFS
0:25:08 > 0:25:11What's that burning smell?
0:25:11 > 0:25:14I think it's coming from the kitchen.
0:25:14 > 0:25:16SMOKE ALARM BEEPS
0:25:18 > 0:25:20Do you think it's going to be like this every day?
0:25:20 > 0:25:22- I hope so. - SHE LAUGHS
0:25:32 > 0:25:33Hi. Are you hungry?
0:25:38 > 0:25:39Thank you.
0:25:39 > 0:25:42You forgot to say thank you to Kat.
0:25:47 > 0:25:50Where are we going to go now, Kat?
0:25:58 > 0:26:01- Hi.- Hi. We'll be off soon.
0:26:01 > 0:26:03No rush.
0:26:03 > 0:26:09- That was really smart what you did with the ball and...- Oh.
0:26:09 > 0:26:11It was just angles and trajectories.
0:26:11 > 0:26:13I can explain it if you like.
0:26:13 > 0:26:17It's all right. I don't have that kind of a brain.
0:26:17 > 0:26:21But your brain might be useful.
0:26:21 > 0:26:24Fancy a bit of brain food? Grub?
0:26:24 > 0:26:28You mean you've managed to cook something?
0:26:28 > 0:26:31Sure. Figured it out. Beef stew and dumplings.
0:26:31 > 0:26:35Come on, it's a big enough home.
0:26:35 > 0:26:37Thanks, Sadiq.
0:26:37 > 0:26:40Wait till you see the washing up!
0:26:57 > 0:27:00Keep looking for us and we'll keep looking for you.
0:27:03 > 0:27:06An adult. We're not on our own.
0:27:06 > 0:27:11The keys. It's got the hotel keys. Kat. Chase the dog.
0:27:11 > 0:27:13- You're making acid? - Delicious.- Follow that tent!
0:27:13 > 0:27:17If you're not back when the time's up, I'll detonate the experiment.
0:27:17 > 0:27:22- You've got 15 minutes left.- Anita!
0:27:22 > 0:27:23- You won't make it. The gas.- Jeff!
0:27:23 > 0:27:27One adult and she's mad.
0:27:31 > 0:27:34Subtitles by Red Bee Media Ltd