0:00:02 > 0:00:05SIREN WAILS Octonauts, to your stations.
0:00:06 > 0:00:11Barnacles! Kwazii! Peso!
0:00:37 > 0:00:40- Explore!- Rescue!- Protect!
0:00:52 > 0:00:55Hmmm. Look at these pictures coming in from Dashi.
0:00:55 > 0:00:59Ooh! Where is she, Captain?
0:00:59 > 0:01:03She's exploring a strange underwater cave.
0:01:03 > 0:01:06There's some amazing stuff in here.
0:01:09 > 0:01:12Let's run these pictures through the computer
0:01:12 > 0:01:14to get a good look at the whole cave.
0:01:14 > 0:01:19It looks like there's squid and some tropical seaweed.
0:01:21 > 0:01:24The cave floor's red and wiggly.
0:01:27 > 0:01:31Those little rocks hanging down look kind of familiar.
0:01:31 > 0:01:33That's because they're teeth!
0:01:33 > 0:01:36And the floor is a tongue!
0:01:36 > 0:01:40How can a cave have teeth and a tongue?
0:01:40 > 0:01:43Because it's not a cave, Peso.
0:01:43 > 0:01:46- It's... - ALL: A whale shark!
0:01:46 > 0:01:51- Dashi, can you hear me? - Loud and clear. Sort of.
0:01:51 > 0:01:54You're not in a cave. You're in a whale shark!
0:01:54 > 0:01:59- Get out! Now! - Uh-oh, closing time!
0:02:02 > 0:02:03My camera!
0:02:11 > 0:02:13Dashi. Can you hear me?
0:02:13 > 0:02:16I'm all right, Captain. I'm...
0:02:16 > 0:02:20The signal can't reach her now that the mouth is shut.
0:02:20 > 0:02:24She's trapped inside a whale shark!
0:02:24 > 0:02:27We need to get her out. Peso, sound the Octoalert.
0:02:27 > 0:02:31- SIREN WAILS - Octonauts, to the launch bay!
0:02:44 > 0:02:47Octonauts, this is a whale shark.
0:02:47 > 0:02:49TUNIP SQUEAKS
0:02:49 > 0:02:52No, Tunip, a whale shark isn't a whale.
0:02:52 > 0:02:55It's the biggest fish in the sea.
0:02:55 > 0:02:57As big as a school bus.
0:02:57 > 0:02:59ALL: Ooh!
0:02:59 > 0:03:03It's so big that Dashi thought its mouth was a cave
0:03:03 > 0:03:06and now she's disappeared inside it.
0:03:06 > 0:03:09How dare that dastardly beast swallow our mate.
0:03:09 > 0:03:12He didn't do it on purpose, Kwazii.
0:03:12 > 0:03:14The whale shark is a filter feeder.
0:03:14 > 0:03:17A filter feeder doesn't use his teeth for biting.
0:03:17 > 0:03:21He just opens his mouth and swallows whatever's there.
0:03:21 > 0:03:24And this whale shark swallowed Dashi.
0:03:25 > 0:03:27- PESO GULPS - We have to get her out.
0:03:27 > 0:03:30You'll need to take this whale shark detector.
0:03:30 > 0:03:33It flashes when a whale shark's near.
0:03:33 > 0:03:37Kwazii, Peso, into the Gup.
0:03:40 > 0:03:43Tweak, open the Octohatch.
0:03:43 > 0:03:45Got it, Cap.
0:03:59 > 0:04:01That's strange.
0:04:01 > 0:04:05According to the map, the whale shark was right here.
0:04:05 > 0:04:09- But I don't see him anywhere. - Probably planning a sneak attack.
0:04:09 > 0:04:12The whale shark detector hasn't flashed once.
0:04:12 > 0:04:15We'd better get out and take a look around...
0:04:15 > 0:04:19Peso, you stay here and keep a lookout.
0:04:19 > 0:04:20Right-o.
0:04:25 > 0:04:29Kwazii, when we find the whale shark, here's our plan.
0:04:29 > 0:04:33We'll need to open its mouth to slip in and get Dashi.
0:04:33 > 0:04:35First, I'll confuse the beast
0:04:35 > 0:04:38by leaping all around like a heap of spaghetti.
0:04:38 > 0:04:42Meanwhile, I'll slither through your spaghetti.
0:04:42 > 0:04:45ALARM BLARES Captain! Kwazii!
0:04:47 > 0:04:49PESO GASPS
0:04:50 > 0:04:53Captain! Behind you!
0:04:53 > 0:04:54It's the...
0:04:54 > 0:04:56THEY SCREAM
0:04:56 > 0:04:58..whale shark!
0:05:01 > 0:05:05You never got to leap around like spaghetti, did you?
0:05:05 > 0:05:07No, I got sucked in like a wet noodle.
0:05:07 > 0:05:10- Dashi!- Dashi!
0:05:10 > 0:05:15Let's look for her by going that way along the tongue. Charge!
0:05:15 > 0:05:17WHALE SHARK GROANS
0:05:17 > 0:05:23- The tongue is kind of ticklish. - We'd better step lightly. Tip-toe.
0:05:26 > 0:05:28This looks like where we came in.
0:05:28 > 0:05:32So let's go back the other way. Slide.
0:05:32 > 0:05:34THEY SHOUT
0:05:34 > 0:05:38These things keep you from falling onto your bum!
0:05:38 > 0:05:42They're gills. The whale shark uses them to let water back out
0:05:42 > 0:05:43while keeping food in.
0:05:43 > 0:05:47- Do you think Dashi could have gone through the gills?- No.
0:05:47 > 0:05:49She's too big.
0:05:49 > 0:05:52This wall feels all spongy-like.
0:05:53 > 0:05:58The sponge wall is another way the whale shark can let water out
0:05:58 > 0:06:00while keeping big stuff in.
0:06:00 > 0:06:03Looks like it kept Dashi's hair clip in.
0:06:03 > 0:06:08- But Dashi must have squeezed her way through.- She's on the other side!
0:06:08 > 0:06:11There's no time to lose. Let's suck in our bellies...
0:06:11 > 0:06:15- THEY BREATHE IN - ..and squeeze!
0:06:15 > 0:06:19Kwazii? Captain? Can anybody hear me?
0:06:21 > 0:06:23PESO GROANS
0:06:23 > 0:06:25I guess not.
0:06:25 > 0:06:28WHALE SHARK GROANS
0:06:28 > 0:06:30Don't roar at me!
0:06:30 > 0:06:32WHALE SHARK GROANS
0:06:32 > 0:06:34That's not a roar.
0:06:34 > 0:06:36That's a moan. You must be sick.
0:06:36 > 0:06:40When a sea creature's sick, I'm there!
0:06:41 > 0:06:44Even if he is as big as a school bus.
0:06:44 > 0:06:48WHALE SHARK MOANS
0:06:52 > 0:06:54Everything looks fine in the ear.
0:06:58 > 0:07:00Nose looks good too.
0:07:00 > 0:07:02Now I'll check your tummy.
0:07:02 > 0:07:04WHALE SHARK GROANS
0:07:04 > 0:07:07His tummy hurts!
0:07:07 > 0:07:11Poor whale shark. My friends must be in there.
0:07:11 > 0:07:16That must not feel too good. You usually only eat small things.
0:07:16 > 0:07:19I've worked out your problem, whale shark.
0:07:19 > 0:07:21You don't have measles or chickenpox.
0:07:21 > 0:07:24You have Octonauts.
0:07:27 > 0:07:30THEY SIGH
0:07:30 > 0:07:32THEY SCREAM
0:07:35 > 0:07:37We seem to have landed...somewhere.
0:07:37 > 0:07:42- Is that you making that clicking sound?- I thought it was you.
0:07:42 > 0:07:44If it's not you and it's not me,
0:07:44 > 0:07:48then who or what is making the clicking sound?
0:07:48 > 0:07:50CAPTAIN SCREAMS
0:07:50 > 0:07:52KWAZII SCREAMS
0:07:52 > 0:07:55Hey, guys, it's great to see you.
0:07:55 > 0:08:00- Um...- Dashi. We...found you. - And you seem to be all right!
0:08:00 > 0:08:03I'm having the most incredible time, taking what might be
0:08:03 > 0:08:07the first photos ever taken inside a whale shark's stomach!
0:08:07 > 0:08:10I hate to interrupt your photo shoot,
0:08:10 > 0:08:14but if this is the whale shark's stomach, we need to get out now
0:08:14 > 0:08:16before we sink any further!
0:08:16 > 0:08:19Octonauts, let's get up and out. Totem pole.
0:08:19 > 0:08:22THEY GRUNT AND STRUGGLE
0:08:27 > 0:08:29THEY BREATHE HEAVILY
0:08:36 > 0:08:40We've made it. All the way back to the mouth.
0:08:40 > 0:08:43The beast's mighty jaws are shut tight.
0:08:43 > 0:08:45Activate helmets.
0:08:46 > 0:08:48Stand back.
0:08:48 > 0:08:50CAPTAIN STRUGGLES
0:08:52 > 0:08:57Your arms are powerful, Captain. But my legs are poetry in motion.
0:08:57 > 0:09:00Stand aside. Cat coming through!
0:09:00 > 0:09:02HE SHOUTS
0:09:04 > 0:09:08This might take all of us working together.
0:09:09 > 0:09:11Say, "Ahhh!"
0:09:14 > 0:09:16Why won't you open your mouth?
0:09:17 > 0:09:20You're a filter feeder, that's what you do!
0:09:25 > 0:09:28Whale shark...tummy ache...
0:09:28 > 0:09:32If you tickle a whale shark's gills, he opens his mouth.
0:09:38 > 0:09:41If we all charge and push together, we can do this.
0:09:41 > 0:09:43- Ready? - BOTH: Ready!
0:09:45 > 0:09:47Coochie-coochie-coo!
0:09:47 > 0:09:49On your marks...
0:09:49 > 0:09:51Coochie-coochie-coochie-coo!
0:09:51 > 0:09:53..get set...
0:09:53 > 0:09:54Coochie-coo!
0:09:54 > 0:09:56Go!
0:09:59 > 0:10:01ALL: Peso?
0:10:01 > 0:10:03I got the whale shark to say, "Ahhh!"
0:10:03 > 0:10:07- You freed us!- And cured the whale shark's tummy ache.
0:10:07 > 0:10:10Ha-ha! Cute little beast.
0:10:10 > 0:10:12Ooh, not so little!
0:10:12 > 0:10:14WHALE SHARK BURPS
0:10:14 > 0:10:15ALL: Eww!
0:10:17 > 0:10:20I can't decide which of these photos I took
0:10:20 > 0:10:23to send in to National Seaographic.
0:10:23 > 0:10:27- They're all amazing. - You must send each and every one.
0:10:32 > 0:10:36- Actually, not all of them. - You might want to skip a few.
0:10:37 > 0:10:40THEY LAUGH
0:10:47 > 0:10:50Subtitles by Red Bee Media Ltd
0:10:50 > 0:10:53E-mail subtitling@bbc.co.uk