0:00:02 > 0:00:05- SIREN WAILS - 'Octonauts, to your stations!'
0:00:05 > 0:00:07Barnacles!
0:00:07 > 0:00:09Kwazii!
0:00:09 > 0:00:10Peso!
0:00:37 > 0:00:40- Explore!- Rescue!- Protect!
0:00:40 > 0:00:42Octonauts!
0:00:49 > 0:00:50Yaw!
0:00:50 > 0:00:52Whoo-hoo!
0:00:52 > 0:00:56Kwazii, have you collected those seaweed samples?
0:00:56 > 0:01:00Aye, Captain. I'm heading back to the Octopod right...
0:01:02 > 0:01:07- Shiver me whiskers! I thought- I- was a hotshot pilot
0:01:07 > 0:01:10but these little fishes put me to shame! Octonauts!
0:01:10 > 0:01:12'Can you see this?'
0:01:12 > 0:01:14They're sardines, Kwazii.
0:01:14 > 0:01:17They always travel together in a school.
0:01:17 > 0:01:20But how do they all STAY together?
0:01:20 > 0:01:24The scales on their skin help them feel when others are near them.
0:01:24 > 0:01:27That's how they stay together when they move.
0:01:27 > 0:01:31'A triple curlicue with a half-pike squiggle!'
0:01:31 > 0:01:34I've got to try that. Kwazii out!
0:01:34 > 0:01:37I'm going to show these fishes some moves of my own!
0:01:38 > 0:01:41Ha-ha! Get a load of that!
0:01:41 > 0:01:45A super-fast flip turn with a backwards loop! Not bad!
0:01:51 > 0:01:54- Hey-hey! Top that!- You're on!
0:02:00 > 0:02:05BOTH: A backward rollover with a one-and-a-half inward split!
0:02:05 > 0:02:08Ha-ha! You swim almost as well as a sardine!
0:02:08 > 0:02:13- You're not too shabby for a little flipper-flapper!- The name's Dina.
0:02:13 > 0:02:16Kwazii. Maybe we'll have a rematch someday.
0:02:16 > 0:02:20You're on! Better get back to my school before they...
0:02:20 > 0:02:21Uh-oh.
0:02:21 > 0:02:25Did you lose your school? I'll be glad to help you find them.
0:02:25 > 0:02:30- No, thanks. I'm sure they didn't go too far. Bye, Kwazii.- Bye, Dina.
0:02:30 > 0:02:32Be careful, matey.
0:02:41 > 0:02:43Mm, lunch is served.
0:02:43 > 0:02:45Ah!
0:02:45 > 0:02:47Not so fast, ye scurvy shark!
0:02:47 > 0:02:50Oh, no! Lunch is cancelled.
0:02:51 > 0:02:56Oh, thanks, Kwazii! I guess it's not so safe out here without my school!
0:02:56 > 0:02:59- They say there's safety in numbers. - True.
0:02:59 > 0:03:03That's why sardines travel in large schools.
0:03:03 > 0:03:06Then, when a fish who wants to eat us shows up,
0:03:06 > 0:03:10- we swim in different directions. It doesn't know who to follow!- Clever!
0:03:10 > 0:03:16- There's only one of me but I'll take you to your school.- That's very nice!
0:03:21 > 0:03:24Avast! There they are now!
0:03:24 > 0:03:28I know a shortcut through this old shipwreck.
0:03:36 > 0:03:38Ahh!
0:03:38 > 0:03:40What happened?
0:03:40 > 0:03:44- I'm caught in this old fish net. - Are you hurt, Kwazii?
0:03:44 > 0:03:45Nah. I just bumped my head.
0:03:45 > 0:03:49Don't worry - I'll get myself out of this mess.
0:03:53 > 0:03:55Yah! Stuck!
0:03:55 > 0:03:58Maybe I could chew through the ropes.
0:03:58 > 0:04:02No, Dina. You go on ahead, or you'll lose your school again!
0:04:04 > 0:04:05Nope.
0:04:05 > 0:04:08You didn't abandon me when I needed help.
0:04:08 > 0:04:11I'm staying here with you till I know you're OK.
0:04:11 > 0:04:14You're a brave lass, Dina, and a good friend.
0:04:14 > 0:04:17I'd better call the Octopod.
0:04:18 > 0:04:19What's wrong, Kwazii?
0:04:19 > 0:04:22Well, I hit my head, the GUP is trapped,
0:04:22 > 0:04:26and a little sardine is in danger cos she lost her school.
0:04:26 > 0:04:31- Other than that, everything's fine. - Hiya!- Sounds like you need a hand.
0:04:31 > 0:04:34- Dashi, sounds the Octoalert! - Aye-aye.
0:04:34 > 0:04:36ALARM WAILS
0:04:36 > 0:04:38Octonauts, to the launch bay!
0:04:48 > 0:04:54We've got an emergency rescue/ first aid/lost sardine situation.
0:04:54 > 0:04:55ALL: Huh?!
0:04:55 > 0:04:59Oh, I'll explain on the way. Tweak, into the GUP-D.
0:04:59 > 0:05:01Peso, into the GUP-E.
0:05:01 > 0:05:05- OK!- Right-o, Captain! - Dashi, open the Octohatch!
0:05:05 > 0:05:07I'm on it, Captain!
0:05:22 > 0:05:24Kwazii, your school is here.
0:05:24 > 0:05:26Aye, you could call them that.
0:05:30 > 0:05:32How's your head, Kwazii?
0:05:32 > 0:05:34Do you feel dizzy? Sleepy?
0:05:34 > 0:05:37How many fingers am I holding up?
0:05:37 > 0:05:40- That's a trick question - you have none.- Great.
0:05:40 > 0:05:44You don't SEEM hurt. But I'll check you over as soon as I can.
0:05:44 > 0:05:48That's where I come in!
0:05:48 > 0:05:50Thanks, everybody.
0:05:50 > 0:05:52Oh, where are my manners?
0:05:52 > 0:05:56Octonauts, meet my new friend, Dina. Dina, Octonauts.
0:05:56 > 0:05:59Hi, everybody. Sorry if I caused any trouble.
0:05:59 > 0:06:00Nonsense!
0:06:00 > 0:06:03The Octonauts are always happy to help.
0:06:03 > 0:06:06Kwazii, which way did the school go?
0:06:06 > 0:06:10They went that way, but they could be anywhere by now!
0:06:11 > 0:06:13Barnacles to Shellington.
0:06:13 > 0:06:18We've lost track of the sardines. Is there a way to find them?
0:06:18 > 0:06:23Yes. We can find the sardines by listening for their burps.
0:06:23 > 0:06:25Sardines burp?
0:06:25 > 0:06:31Yes. Sardines - and many other fish - swallow air to help them float.
0:06:31 > 0:06:36When they want to sink lower, the burp the air out again.
0:06:37 > 0:06:42You can pick up the burping sound on the GUP's underwater microphone.
0:06:46 > 0:06:49Now, just listen and be very quiet.
0:06:49 > 0:06:52SNORING
0:06:54 > 0:07:00- I don't suppose the sardines are asleep.- That's a seal snoring.
0:07:00 > 0:07:01CLICKING
0:07:01 > 0:07:05- What's that? - A crab clicking its claws.
0:07:05 > 0:07:07BURPING
0:07:07 > 0:07:09Ah - burping!
0:07:09 > 0:07:13- Dashi, can you tell us where it's coming from?- I'm on it.
0:07:13 > 0:07:17Straight ahead...near a coral reef.
0:07:17 > 0:07:20That's where we're heading. Barnacles, out.
0:07:20 > 0:07:23Dina, we may have found your school.
0:07:23 > 0:07:26That's good news! Best be on your way, Dina.
0:07:26 > 0:07:28But I don't want to leave you here.
0:07:28 > 0:07:32I'll be fine - I'm with my school!
0:07:32 > 0:07:34And you need to be with yours. Go on now.
0:07:34 > 0:07:38Thanks, Kwazii, for all your help.
0:07:38 > 0:07:40Any time. Stay safe out there!
0:07:40 > 0:07:42Just follow me, Dina.
0:07:48 > 0:07:50BURPING
0:07:50 > 0:07:54The burping's getting louder. We must be close.
0:07:54 > 0:07:58Don't tell me sea horses burp too, Shellington!
0:07:58 > 0:08:04Lots of fish do, Captain. We must have picked up sea horse burps.
0:08:04 > 0:08:08What if my school is so far away we never find them?
0:08:08 > 0:08:12Captain, the burps you hear now are from above you.
0:08:12 > 0:08:15This could be your school, Dina. Let's go.
0:08:17 > 0:08:19BURPING
0:08:19 > 0:08:25- We must be very close now. - I can feel them with my scales!
0:08:28 > 0:08:30There they are!
0:08:30 > 0:08:32Whoops!
0:08:32 > 0:08:34Almost forgot to say thank you!
0:08:34 > 0:08:39- And please thank Kwazii for me. - Don't mention it, Dina.
0:08:39 > 0:08:41Helping sea creatures is what we do.
0:08:42 > 0:08:44Bye, Dina!
0:08:44 > 0:08:47I'll let Kwazii know you're all right.
0:08:50 > 0:08:53There you go, Kwaz. You're free!
0:08:55 > 0:08:56'Come in, Kwazii.'
0:08:56 > 0:09:00We found Dina's school - she's safe and sound.
0:09:00 > 0:09:02That's happy news indeed, Captain.
0:09:02 > 0:09:07Everything looks good here. See you back at the Octopod.
0:09:11 > 0:09:16Mmm. Breakfast, lunch AND dinner is served.
0:09:16 > 0:09:18That shark looks hungry for sardines.
0:09:18 > 0:09:21I've got to help them!
0:09:22 > 0:09:23Oh, no!
0:09:26 > 0:09:29Nah... Ah... Er...
0:09:29 > 0:09:30Hmm.
0:09:30 > 0:09:35They're swimming in different directions to confuse the shark.
0:09:35 > 0:09:37Oh!
0:09:37 > 0:09:42Uh-oh. More sharks. Looks like the sardines could use some backup.
0:09:42 > 0:09:47Calling all GUPs. Sardines in trouble!
0:09:47 > 0:09:48Yaw!
0:09:53 > 0:09:58I don't know if I can hold them off by myself for much longer!
0:09:58 > 0:10:00You won't need to, Captain!
0:10:00 > 0:10:02YAW!
0:10:02 > 0:10:07Octonauts, follow the sardines' lead. Swirl and confuse!
0:10:14 > 0:10:21- Over here!- This way! - Catch me if you can!- This way?
0:10:24 > 0:10:25Ow!
0:10:25 > 0:10:28Breakfast, lunch and dinner - cancelled!
0:10:28 > 0:10:30THEY CHEER
0:10:30 > 0:10:35- Kwazii! I'm so glad you're OK. - And I'm glad YOU'RE OK.
0:10:35 > 0:10:38I guess we both needed our schools to help us!
0:10:38 > 0:10:40DINA BURPS
0:10:40 > 0:10:41Excuse me!
0:10:41 > 0:10:44THEY ALL LAUGH
0:10:48 > 0:10:51Subtitles by Zoe Short Red Bee Media Ltd
0:10:51 > 0:10:54E-mail subtitling@bbc.co.uk