0:00:02 > 0:00:04- Nobody's joining us at the Knot. - Which one of you is leaving?
0:00:04 > 0:00:08- It's all of us. - I think I want to foster, as well,
0:00:08 > 0:00:10- like you.- 'Mikey Valentine's going to save the Knot.'
0:00:10 > 0:00:12HUGE EXPLOSIONS Run!
0:00:14 > 0:00:17- Come on, Wayne the Second, we're going in.- You can't!
0:00:17 > 0:00:18Rocket!
0:00:50 > 0:00:52HUGE EXPLOSIONS
0:00:52 > 0:00:55- COUGHING - Archie? Are you OK?
0:00:56 > 0:00:58Yeah, I am.
0:01:01 > 0:01:03Where's Izzy?
0:01:05 > 0:01:07Izzy?
0:01:13 > 0:01:15Rocket?
0:01:15 > 0:01:17Alli!
0:01:29 > 0:01:32"Sorry, couldn't wait. Alli."
0:01:32 > 0:01:33EXPLOSIONS
0:01:46 > 0:01:48EXPLOSION
0:01:48 > 0:01:54- Alli!- Why couldn't I have been someone else's big sister?
0:02:03 > 0:02:08Whoa! You two actually look like you're getting on with each other.
0:02:08 > 0:02:13Yeah, well, turns out we've got more in common than we thought.
0:02:24 > 0:02:25Grandad?!
0:02:25 > 0:02:27Izzy?
0:02:29 > 0:02:30Izzy!
0:02:35 > 0:02:38What are you doing?
0:02:38 > 0:02:41I lost my torch. I couldn't see anything, and...
0:02:41 > 0:02:44It's OK. At least we're all all right.
0:02:50 > 0:02:54We never should've come in here. It's dark and it's dangerous,
0:02:54 > 0:02:57and it's really hard to see what people are saying.
0:02:57 > 0:03:00Well, we can't go back.
0:03:00 > 0:03:01Why?
0:03:01 > 0:03:04The roof collapsed behind us. There's no way past.
0:03:04 > 0:03:06How are we going to get out, then?
0:03:08 > 0:03:10By going through the Dirgeldoor.
0:03:10 > 0:03:13The only way to get out now is to go further in.
0:03:21 > 0:03:24Wait, you're actually telling me not only has Jade, Archie
0:03:24 > 0:03:27and Izzy been stupid enough to go down the mines but Rocket
0:03:27 > 0:03:31- and Alli have followed them?! - It, er, certainly seems that way.
0:03:31 > 0:03:34- Rocket's in there? - Why would they do that?
0:03:34 > 0:03:37Because they heard you on the phone arranging for one of them to go,
0:03:37 > 0:03:40so they decided it would be better if they all went together.
0:03:40 > 0:03:43They think the Dirgeldoor will magically transport them
0:03:43 > 0:03:45to their true home, wherever that is.
0:03:45 > 0:03:49So why didn't you tell us? Not Rocket, not Alli, but us!
0:03:49 > 0:03:52Archie promised me they wouldn't do it.
0:03:52 > 0:03:55Something must have happened after they left my house.
0:03:55 > 0:03:56And I think I know what.
0:03:56 > 0:03:58You didn't say it was a secret.
0:03:58 > 0:03:59What? Is it true?
0:04:01 > 0:04:04Hey, hey, we need to go in after them. Now.
0:04:04 > 0:04:07No. There are miles and miles of tunnels down there,
0:04:07 > 0:04:11and they've been collapsing for years.
0:04:12 > 0:04:15No-one else goes in until we know exactly where this Dirgeldoor is.
0:04:15 > 0:04:19Wait, there was a poem on the back of one of my grandad's
0:04:19 > 0:04:22- photos that told us where to go. - What did it say?
0:04:23 > 0:04:26"When you get to the Sunstone,
0:04:26 > 0:04:30"you go into the fourth tunnel, then..."
0:04:30 > 0:04:32Where's the photo now?
0:04:33 > 0:04:34Rocket took it.
0:04:36 > 0:04:41I've got some old maps in the store. I'll see what I can find.
0:04:51 > 0:04:53We've been going for ages.
0:04:53 > 0:04:57What if we didn't choose the right tunnel?
0:04:57 > 0:04:58What if we're going the wrong way?
0:04:58 > 0:05:00Rocket!
0:05:02 > 0:05:05Brilliant!
0:05:05 > 0:05:08- What? - It's a step!
0:05:08 > 0:05:10So?
0:05:10 > 0:05:11So, the poem!
0:05:14 > 0:05:17"To gain purest magic, enter through Mars
0:05:17 > 0:05:22"Avoiding the Hard Rain and, taking the Stairs
0:05:22 > 0:05:27"Turn left at the Mites, skip the Gasp and long roam
0:05:27 > 0:05:31"And lo, there it be, ready to carry thee home."
0:05:35 > 0:05:42So if we've got to the Stairs, that means we avoided the Hard Rain.
0:05:42 > 0:05:43Yep.
0:05:44 > 0:05:47We're on our way to the Dirgeldoor.
0:05:47 > 0:05:49It won't be long till we find the others.
0:06:00 > 0:06:01We know we went in the wrong tunnel,
0:06:01 > 0:06:05but how can we be sure it still takes us to the same place?
0:06:06 > 0:06:10We could be on our way to the centre of the earth!
0:06:10 > 0:06:12Oh, no, we're not.
0:06:14 > 0:06:16Stalagmites!
0:06:18 > 0:06:23"Turn left at the Mites, skip the Gasp and long roam."
0:06:24 > 0:06:26This is where we turn.
0:06:28 > 0:06:30We ARE back on track.
0:06:30 > 0:06:32And we're getting closer!
0:06:39 > 0:06:40Hey.
0:06:43 > 0:06:45I heard you're not doing too good. PIG GRUNTS
0:06:48 > 0:06:53Well, I'm not promising I'll be able to help - I don't think I will -
0:06:53 > 0:06:55but I'm going to try.
0:06:58 > 0:07:01Well, it's got to be here.
0:07:01 > 0:07:04Only if it exists.
0:07:04 > 0:07:07Maps tell you about places that are actually there,
0:07:07 > 0:07:09not those that just might be.
0:07:09 > 0:07:12The legend doesn't even make sense, anyway.
0:07:12 > 0:07:15If everyone had always taken a piece of the Door away,
0:07:15 > 0:07:18it wouldn't be long before there wasn't any left, would it?
0:07:18 > 0:07:21Oh, it exists all right. I'm sure of it.
0:07:23 > 0:07:25CREAKING
0:07:29 > 0:07:31Not heard from you in a while.
0:07:32 > 0:07:34I didn't think you'd come.
0:07:34 > 0:07:36Why?
0:07:36 > 0:07:40Well, you're not exactly the "knight in shining armour" type.
0:07:40 > 0:07:43You said you needed help. I'm not going to ignore that.
0:07:47 > 0:07:51There's something wrong with Bradley.
0:07:51 > 0:07:52Are you serious?
0:07:52 > 0:07:56You drag me over here at this time because of a sick pig?
0:07:56 > 0:07:59Forget Bradley, there's something wrong with YOU!
0:07:59 > 0:08:02Tyler! This is serious.
0:08:02 > 0:08:05Alli and the others went down to the old mines, and if they hadn't seen me
0:08:05 > 0:08:09come out of there in the first place it would never have happened.
0:08:09 > 0:08:11You went down the mines?
0:08:16 > 0:08:19You're leaving the island?
0:08:26 > 0:08:28What about the whole vet thing?
0:08:31 > 0:08:35I can't do it. And I don't know why I ever thought I could.
0:08:36 > 0:08:39But Townend's away till next week, so...
0:08:39 > 0:08:41right now I'm all they've got.
0:08:54 > 0:08:57- Brilliant! - What?
0:08:57 > 0:09:01Stalagmites. So this is where we turn left.
0:09:01 > 0:09:03Whoa, whoa, whoa. Er, Rocket?
0:09:03 > 0:09:05Tites come down.
0:09:05 > 0:09:11- What?- Mites go up, tites come down. These aren't stalagmites.
0:09:11 > 0:09:13These are stalactites.
0:09:13 > 0:09:16We do not want to go down there.
0:09:16 > 0:09:20Hard Rain sounded bad enough, but the Gasp definitely sounds worse.
0:09:23 > 0:09:28Still no sign of them at the entrance, I'm afraid.
0:09:28 > 0:09:31Wherever they are, it looks like they haven't turned back.
0:09:31 > 0:09:34Well, I'm not waiting any longer. I'm going in.
0:09:34 > 0:09:35Me too.
0:09:35 > 0:09:36Wait!
0:09:36 > 0:09:40They are our kids, Elfyn. All of them.
0:09:40 > 0:09:41Don't try and stop us.
0:09:41 > 0:09:44I'm not, it's just...
0:09:44 > 0:09:46I'm coming with you.
0:09:48 > 0:09:49And me!
0:09:49 > 0:09:51Oh, no. No more children!
0:09:51 > 0:09:53Mum, I HAVE to go!
0:09:53 > 0:09:55No, you don't, Dan.
0:09:55 > 0:09:59Because I need someone to stay here and look after your mum and Bethany,
0:09:59 > 0:10:04and if you do that for me, I promise I'll bring all your friends back.
0:10:04 > 0:10:05OK?
0:10:19 > 0:10:21There's something I need to tell you.
0:10:21 > 0:10:23Look!
0:10:28 > 0:10:30Mites go up...
0:10:31 > 0:10:33..so we have to turn left.
0:10:36 > 0:10:38LOUD RUMBLING
0:10:38 > 0:10:41EXPLOSIONS
0:10:41 > 0:10:44BARKING
0:10:51 > 0:10:55I'm going to miss you, you know, when you go.
0:10:55 > 0:10:57I mean, I know I can be an idiot, and...
0:10:59 > 0:11:02..I'm not good at saying how I feel, but....
0:11:03 > 0:11:05..I...
0:11:05 > 0:11:07I don't believe it.
0:11:07 > 0:11:08Hm?
0:11:11 > 0:11:15- What?- That's it. That's what's wrong with Bradley.
0:11:20 > 0:11:23RUMBLING
0:11:24 > 0:11:29I don't get it. How would miners have ever got through here?
0:11:29 > 0:11:33Maybe they didn't. Maybe we got it wrong again.
0:11:34 > 0:11:35Maybe...
0:11:38 > 0:11:41..maybe this is the Gasp.
0:11:41 > 0:11:42But we did what it said!
0:11:45 > 0:11:49Let's go back to the Mites. Maybe there's a tunnel we missed.
0:11:56 > 0:11:59- EXPLOSION - NO!
0:12:02 > 0:12:05We're just going to have to keep going.
0:12:06 > 0:12:09But it's getting smaller and smaller!
0:12:09 > 0:12:13Then...we'd all better breathe in.
0:12:18 > 0:12:23How are they going to find them, when the mines are so ginormous?
0:12:23 > 0:12:25I don't know.
0:12:25 > 0:12:28What if they got separated down there
0:12:28 > 0:12:31and they're not just lost, they're all alone, too?
0:12:32 > 0:12:38Oh, young Rocket will be OK. That dog never leaves his side.
0:12:38 > 0:12:42- Wayne the Second's with them? - Well, so Madison Creetch said.
0:12:44 > 0:12:47Then I know how we can find out where they are!
0:12:47 > 0:12:48How?
0:12:48 > 0:12:50W2TV!
0:12:51 > 0:12:54We're never going to get out of here, are we?
0:12:58 > 0:13:00I'm sorry.
0:13:00 > 0:13:04Coming down to the mines was the dumbest thing I've EVER done.
0:13:04 > 0:13:06It's my fault.
0:13:06 > 0:13:09I'm the one who came to this island and messed everything up.
0:13:09 > 0:13:12It's ALL our faults. And now we're stuck.
0:13:16 > 0:13:18BARKING
0:13:20 > 0:13:23What's that? Who's there?
0:13:28 > 0:13:29Rocket!
0:13:29 > 0:13:31Come on, it's this way.
0:13:33 > 0:13:37Wayne the Second has a camera on his collar.
0:13:37 > 0:13:40Rocket set it up ages ago so that he could see the world
0:13:40 > 0:13:46from his point of view. Now I just need to figure out the password.
0:13:46 > 0:13:49Er, I'm not sure I approve of computer hacking.
0:13:49 > 0:13:51This is an emergency!
0:13:51 > 0:13:54More than likely he's picked something
0:13:54 > 0:13:56- that really matters to him. - What are you trying?
0:13:56 > 0:13:58"Bethany Summer."
0:13:58 > 0:14:01Awww, Rocket!
0:14:07 > 0:14:10- What? - What did you try, Mrs Sparks?
0:14:10 > 0:14:11"Dibber."
0:14:11 > 0:14:14Awww, Rocket!
0:14:14 > 0:14:16We couldn't go back the way we came,
0:14:16 > 0:14:18because the tunnel collapsed behind us.
0:14:18 > 0:14:20Did our way, too.
0:14:20 > 0:14:22Then what are we going to do?
0:14:24 > 0:14:26We're going to find the Dirgeldoor.
0:14:26 > 0:14:28But we don't know where it is.
0:14:28 > 0:14:33Yes, we do. We did enter through Mars and take the Stairs,
0:14:33 > 0:14:35and we did turn left at the Mites.
0:14:37 > 0:14:39And this HAS been a really long roam.
0:14:42 > 0:14:43It can't be far now.
0:14:47 > 0:14:51"And lo, there it be, ready to carry thee home."
0:14:51 > 0:14:53BARKING
0:14:56 > 0:14:57The others are with them, too!
0:14:57 > 0:14:59Doesn't help us that much, does it?
0:14:59 > 0:15:02We can't speak to them, and we are no closer to finding them.
0:15:02 > 0:15:05All of these tunnels look exactly the same!
0:15:05 > 0:15:08Ah, but they're not. Not if you know your mines.
0:15:08 > 0:15:10Fortunately, I was in the Gold Rush in '49.
0:15:10 > 0:15:151849. And I know EXACTLY what to look for!
0:15:15 > 0:15:19See? Those numbers are on the map!
0:15:19 > 0:15:23237. 237. 23...
0:15:23 > 0:15:25Here it is!
0:15:25 > 0:15:28Elfyn? We've got 'em!
0:15:45 > 0:15:48What's this?
0:15:48 > 0:15:51A dead end, that's what.
0:15:51 > 0:15:53No. It can't be.
0:15:55 > 0:15:57Where's the door?
0:15:57 > 0:15:59RUMBLING
0:16:00 > 0:16:05Maybe the Dirgeldoor used to be here, but...that collapsed, too.
0:16:05 > 0:16:08So we're trapped. We can't go any further, and...
0:16:09 > 0:16:11..we can't go back.
0:16:11 > 0:16:14We're going to be down here forever!
0:16:20 > 0:16:21It's there!
0:16:23 > 0:16:26- What is?- Twine from one of the straw bales. I saw some was missing.
0:16:26 > 0:16:30I'm going to need you to keep him as calm as possible.
0:16:35 > 0:16:39OK, Bradders... I'm speaking to you man to man.
0:16:42 > 0:16:45Creetchy here's going to try and help you out.
0:16:45 > 0:16:47So you hang on in there, dude, all right?
0:16:54 > 0:16:56Good lad!
0:17:05 > 0:17:07There's one light left.
0:17:10 > 0:17:12I can't believe you came.
0:17:12 > 0:17:14What?
0:17:14 > 0:17:17For us. You knew how dangerous it was,
0:17:17 > 0:17:19but...you came anyway.
0:17:19 > 0:17:21Yeah. Why?
0:17:21 > 0:17:23Don't you lot get it yet?
0:17:23 > 0:17:25We're family.
0:17:33 > 0:17:36Maybe this IS the most magical place on the island after all.
0:17:36 > 0:17:38EXPLOSIONS
0:17:39 > 0:17:43This whole mine's going to collapse, isn't it?
0:17:43 > 0:17:45- IZZY WIZZY SHRIEKS - Hello?
0:17:45 > 0:17:47Rocket?
0:17:47 > 0:17:49Alli!
0:17:49 > 0:17:50BARKING
0:17:50 > 0:17:53Now, what have we got here?
0:17:53 > 0:17:55Mr Summer!
0:18:06 > 0:18:08We're so, so sorry.
0:18:08 > 0:18:11We were just trying to get to our true home.
0:18:11 > 0:18:13And take the magic of the island with us.
0:18:13 > 0:18:15You're not going anywhere!
0:18:15 > 0:18:17One of us is.
0:18:17 > 0:18:18Is that really true?
0:18:20 > 0:18:21Which one?!
0:18:22 > 0:18:24Me.
0:18:27 > 0:18:30I'm going to the mainland to do that art course.
0:18:33 > 0:18:36I think you should talk about this later. We need to get out of here,
0:18:36 > 0:18:39and it's a long way back.
0:18:39 > 0:18:42I reckon Alli should take a bit of the Dirgeldoor with her, though.
0:18:42 > 0:18:44- Don't you? - That's not a door!
0:18:44 > 0:18:48No! It's not "door" as in D-O-O-R,
0:18:48 > 0:18:51it's "dwr" as in D-W-R. It's Welsh for "water", isn't it?
0:18:51 > 0:18:55Do you know, guys, I've heard stories that when a miner
0:18:55 > 0:18:58finished their last ever shift in Silverland, that they used to
0:18:58 > 0:19:03say goodbye to their old life by washing away their dirt in that.
0:19:03 > 0:19:05It's warm, too,
0:19:05 > 0:19:09which means it must come up from the centre of the earth.
0:19:09 > 0:19:11So the legend's right.
0:19:11 > 0:19:15No matter how much you take, it'll never run out.
0:19:18 > 0:19:21Hey. I can feel cool air.
0:19:21 > 0:19:24Everyone turn their torches off.
0:19:24 > 0:19:26I'm not sure now's really the time for...
0:19:26 > 0:19:27Please!
0:19:37 > 0:19:39It's dawn.
0:19:42 > 0:19:45The sun's rising and it's coming through.
0:19:45 > 0:19:47There must be another way out.
0:19:48 > 0:19:50Come on.
0:19:50 > 0:19:52Come on, let's go.
0:20:18 > 0:20:22Look! The Dirgeldoor really has brought you to your true home.
0:20:22 > 0:20:23The Knot!
0:20:30 > 0:20:31Where's Bradley?
0:20:33 > 0:20:35Making up for lost time.
0:20:35 > 0:20:38Bradley! There you are!
0:20:45 > 0:20:48You'd better remove the twine from those bales, Mr B.
0:20:48 > 0:20:51Turns out pigs really will eat anything.
0:20:53 > 0:20:55You've got to be a vet now!
0:20:56 > 0:21:00Try and stop me. I'm not going anywhere.
0:21:01 > 0:21:05Sometimes a knight's armour just needs a little bit of polish.
0:21:05 > 0:21:06Yeah, whatever.
0:21:08 > 0:21:10Why didn't you say anything?
0:21:10 > 0:21:14I tried to. And Mum did, too.
0:21:15 > 0:21:17I don't want you to go.
0:21:18 > 0:21:19I have to.
0:21:21 > 0:21:23I thought you'd be there forever.
0:21:24 > 0:21:26I will. Just...
0:21:28 > 0:21:30..not here.
0:21:31 > 0:21:35For the first time in my life, I know exactly what I want to do.
0:21:37 > 0:21:40And I'm actually going to do it, too.
0:21:40 > 0:21:43Yeah, well, don't expect me to wave you off or nothing, cos I won't.
0:21:57 > 0:21:59Mikey came.
0:22:17 > 0:22:19I'll be back soon, Charlie, I promise.
0:22:22 > 0:22:23And I'll always be your mum.
0:22:25 > 0:22:29But, in the meantime, I think you need a foster mum, too.
0:22:52 > 0:22:54Me?
0:23:05 > 0:23:07I'm going to miss you guys.
0:23:09 > 0:23:10Well, you don't need to,
0:23:10 > 0:23:13cos I'm basically going to message you all the time.
0:23:23 > 0:23:26Everyone wanted to be here to see you off, Al.
0:23:26 > 0:23:27Yeah?
0:23:28 > 0:23:30Well, everyone isn't.
0:23:50 > 0:23:53Mr S, you're...kind of all right.
0:23:55 > 0:23:57And you, too, Mrs Sparks.
0:23:57 > 0:24:01I never doubted you for a second! Welcome to the family.
0:24:02 > 0:24:06Well, I'm delighted you all feel that way, because...
0:24:06 > 0:24:09we have an announcement to make, haven't we?
0:24:09 > 0:24:11We do indeed.
0:24:11 > 0:24:13Elfyn and I are getting married!
0:24:13 > 0:24:16- ALL:- What?!
0:24:32 > 0:24:38It's a good job, cos these days I do have a lot to say.
0:24:38 > 0:24:41I don't think they're working right. I can hear this...
0:24:41 > 0:24:43swishing sound.
0:24:43 > 0:24:47Ah, now, that is the leaves of the old oak.
0:24:47 > 0:24:50You can hear them again.
0:24:50 > 0:24:52I think that's the sound the Tree-sprites make
0:24:52 > 0:24:54when they say they're sorry.
0:24:56 > 0:24:58APOLOGY ACCEPTED!
0:25:02 > 0:25:06It isn't just any water.
0:25:06 > 0:25:10It's a bit of the Dirgeldoor.
0:25:10 > 0:25:13With kids like this, we can't stop, can we?
0:25:14 > 0:25:16Eh?
0:25:17 > 0:25:20It's time we took on even more than ever.
0:25:20 > 0:25:25Anyone who's been let down, who feels alone, hasn't got a home...
0:25:27 > 0:25:29..they're all coming next.
0:25:29 > 0:25:31We're foster parents, aren't we?
0:25:32 > 0:25:35It's what we do.
0:25:35 > 0:25:37ALL CHEER
0:25:51 > 0:25:53Rocket!
0:26:08 > 0:26:10Wayne the Second, come by.
0:26:10 > 0:26:12HE WHISTLES
0:26:15 > 0:26:18Come by!
0:26:18 > 0:26:20HE WHISTLES
0:26:38 > 0:26:41"Always...
0:26:41 > 0:26:43"believe."
0:26:52 > 0:26:53I will, Rocket.
0:26:55 > 0:26:57I will.
0:27:20 > 0:27:23Don't worry, Wayne the Second, it'll be all right.
0:27:24 > 0:27:27The end of every story...
0:27:27 > 0:27:29is always the beginning of the next.