0:00:02 > 0:00:05Octonauts, to your stations!
0:00:06 > 0:00:11Barnacles! Kwazii! Peso!
0:00:37 > 0:00:40- Explore!- Rescue!- Protect!
0:00:40 > 0:00:43KIDS: Octonauts!
0:00:54 > 0:00:57Captain, the kelp forest is right up ahead.
0:00:57 > 0:00:59Thanks, Dashi. Now, let's hurry,
0:00:59 > 0:01:02Shellington has someone special he wants us to meet.
0:01:02 > 0:01:04Ah, can't you just tell us who it is?
0:01:04 > 0:01:07No, it's a surprise.
0:01:07 > 0:01:11Ohh! Is it someone you've known for a long time?
0:01:11 > 0:01:13Actually, I've never met him before.
0:01:13 > 0:01:17Is it...some kind of slimy kelp monster?
0:01:17 > 0:01:23- No.- Hmm. Is it...? A bunch of kelp heading straight for us!
0:01:23 > 0:01:27ALL GROAN AND WHIMPER
0:01:27 > 0:01:30Yah! The water's full of kelp!
0:01:30 > 0:01:33And it's all coming from the kelp forest.
0:01:33 > 0:01:35Something's not right.
0:01:35 > 0:01:37We'd better take a look.
0:01:39 > 0:01:43Kelp strands are connected to the sea floor by these special roots.
0:01:43 > 0:01:47If these roots come lose...the kelp will float away.
0:01:47 > 0:01:51If too much kelp floats away there'll be no more kelp forest.
0:01:51 > 0:01:54And all these creatures will have nowhere to live!
0:01:54 > 0:01:59But what's causing all the kelp to come loose in the first place?
0:01:59 > 0:02:01Avast! Look, mateys.
0:02:03 > 0:02:06I was afraid of this. Red urchins!
0:02:06 > 0:02:09Red urchins destroy kelp roots.
0:02:09 > 0:02:14- They can wipe out an entire kelp forest.- Unless there are sea otters
0:02:14 > 0:02:17around to eat them.
0:02:17 > 0:02:19- Pearl! - SHE CHUCKLES
0:02:19 > 0:02:21Hello, Shellington.
0:02:21 > 0:02:25Everybody, this is my sister, Pearl, the sea otter.
0:02:25 > 0:02:28- Oh! Hiya.- ALL: Hello, matey.
0:02:28 > 0:02:30Pearl is a scientist just like me.
0:02:30 > 0:02:33She knows practically everything about kelp forests
0:02:33 > 0:02:37- and kelp plants.- Actually, kelp isn't a plant at all,
0:02:37 > 0:02:38it's a type of algae.
0:02:38 > 0:02:42- See?- So this is who you wanted us to meet.
0:02:42 > 0:02:44Not exactly, but I'm sure Pearl
0:02:44 > 0:02:47can tell us what's wrong with the kelp forest.
0:02:47 > 0:02:52Ah, yes. I'm afraid I've fallen a bit behind on my urchin duties.
0:02:52 > 0:02:58- Urchin duties?- Yes, we sea otters are what's known as a keystone species.
0:02:58 > 0:03:00The whole kelp forest depends on us
0:03:00 > 0:03:03to eat the red urchins so they don't destroy it.
0:03:03 > 0:03:05It's our duty as sea otters.
0:03:05 > 0:03:08But I've never seen you eat an urchin.
0:03:08 > 0:03:13Ah...well, actually, as it turns out, I'm allergic to urchins.
0:03:13 > 0:03:16Shellington helps the kelp forest in a different way,
0:03:16 > 0:03:18as an Octonaut.
0:03:18 > 0:03:22Usually, I can keep the urchins under control all by myself,
0:03:22 > 0:03:27but lately I've been kind of busy with... Well, let me show you.
0:03:30 > 0:03:32He's right over here.
0:03:32 > 0:03:35I wrapped him up in kelp so he wouldn't drift away.
0:03:35 > 0:03:39Everybody, this is Periwinkle.
0:03:39 > 0:03:41PERIWINKLE LAUGHS
0:03:41 > 0:03:44This is who I wanted you all to meet.
0:03:44 > 0:03:46My new nephew!
0:03:46 > 0:03:50- ALL: Aw!- Look how fuzzy he is! - Coochie-coo!
0:03:50 > 0:03:53Peri's still just a baby, so I spend most of my time
0:03:53 > 0:03:56feeding him, cleaning him and teaching him how to find food.
0:03:56 > 0:03:58Once Peri's a little older,
0:03:58 > 0:04:01he'll be able to dive down to eat red urchins too.
0:04:01 > 0:04:06As a matter of fact, it's just about time for Peri's first diving lesson.
0:04:06 > 0:04:09Oh, but I still have to catch up on my urchin duties.
0:04:09 > 0:04:13Pearl, why don't you and Shellington give Peri his diving lesson
0:04:13 > 0:04:17and let us clear the urchins out of the kelp forest?
0:04:17 > 0:04:19Oh! That would be wonderful!
0:04:19 > 0:04:22Octonauts...let's do this!
0:04:24 > 0:04:27- We eat red urchins like this. - SHE GULPS
0:04:27 > 0:04:29Now you try.
0:04:32 > 0:04:35Oh, no, sweetie, that's a rock.
0:04:42 > 0:04:45BOTH LAUGH
0:04:45 > 0:04:47Hup! Hup!
0:04:55 > 0:04:57BOTH GASP CLAWS SNAP
0:05:02 > 0:05:05Barnacles to Shellington, how's the diving lesson going?
0:05:05 > 0:05:11Well, Peri's found three red rocks, two red shells, one grumpy red crab,
0:05:11 > 0:05:14but no red urchins!
0:05:14 > 0:05:16- How about you?- It took a while,
0:05:16 > 0:05:20but we managed to clear the red urchins out of the kelp forest.
0:05:20 > 0:05:21PEARL SIGHS
0:05:21 > 0:05:25That should keep them under control at least until it gets dark.
0:05:25 > 0:05:28Captain, red urchins are most active at night.
0:05:28 > 0:05:31They might try to come back when the sun goes down.
0:05:31 > 0:05:33In that case, we'd better stay the night.
0:05:33 > 0:05:36We'll take turns looking out for urchins.
0:05:38 > 0:05:41ALL SNORE SOFTLY
0:05:41 > 0:05:44Now, you're sure you'll be OK up there, Shellington?
0:05:44 > 0:05:47Of course, Captain.
0:05:47 > 0:05:51Nothing like sleeping out under the stars sea-otter style.
0:05:51 > 0:05:55Ah! We're holding hands and holding on to kelp,
0:05:55 > 0:05:57- so we don't... - HE YAWNS
0:05:57 > 0:05:59..float away.
0:05:59 > 0:06:00ALL SNORE SOFTLY
0:06:00 > 0:06:02SHELLINGTON SIGHS
0:06:06 > 0:06:11- PESO YAWNS - Still no sign of any urchins.
0:06:11 > 0:06:13RUSTLING
0:06:13 > 0:06:15PESO GULPS
0:06:15 > 0:06:17- RUSTLING - Hello?
0:06:17 > 0:06:21Hey, can't a guy have dinner in peace?!
0:06:21 > 0:06:24Oh, excuse me, I thought you were...
0:06:24 > 0:06:25PESO GASPS
0:06:25 > 0:06:27Urchins!
0:06:28 > 0:06:33Oh, no! That's the strand of kelp Shellington's holding on to!
0:06:33 > 0:06:35- HE GASPS - Shellington!
0:06:35 > 0:06:38Come in, Shellington. Your kelp strand is loose!
0:06:38 > 0:06:40SHELLINGTON SIGHS
0:06:40 > 0:06:44I just want to sleep. Just a few minutes more, Mum.
0:06:44 > 0:06:47PESO GASPS AND PANTS
0:06:47 > 0:06:49PESO SIGHS
0:06:49 > 0:06:51Flapperty flippers!
0:06:52 > 0:06:55- PESO:- 'Captain! Come in, Captain!'
0:06:55 > 0:06:59'The urchins are coming. The urchins are coming! Lots of them!'
0:06:59 > 0:07:03- HE GASPS - Kwazii!- What?!- Sound the Octo-alert!
0:07:03 > 0:07:06- ALERT - Octonauts to the GUP-A!
0:07:06 > 0:07:08ALERT
0:07:15 > 0:07:18Octonauts, the urchins are heading for the kelp forest
0:07:18 > 0:07:20and we've got to stop them.
0:07:20 > 0:07:24Everyone, let's... Oh, hang on, where's Shellington?
0:07:24 > 0:07:27'Captain, the urchins destroyed the roots
0:07:27 > 0:07:29'of the kelp he was holding on to.'
0:07:29 > 0:07:33Captain, look! Shellington, Pearl and Peri are drifting out to sea!
0:07:33 > 0:07:37Dashi, Kwazii, you take the GUP-A to rescue Shellington.
0:07:37 > 0:07:41Tunip, Tweak, we'll help Peso with the urchins.
0:07:41 > 0:07:43There's no time to lose.
0:07:44 > 0:07:46Everyone, into positions.
0:07:54 > 0:07:58Kwazii, Dashi, any sign of Shellington and Pearl?
0:07:58 > 0:08:00We're approaching them now, Captain.
0:08:00 > 0:08:03Hurry, Dashi, we need all the help we can get.
0:08:04 > 0:08:08Avast! There they are, matey!
0:08:11 > 0:08:13SHE GROANS
0:08:13 > 0:08:15BOTH: Whoa!
0:08:17 > 0:08:20If we get too close, we'll crash into them.
0:08:20 > 0:08:23- Kwazii, maybe you could...?- Reel 'em in?
0:08:23 > 0:08:25Already on it.
0:08:25 > 0:08:27Almost!
0:08:27 > 0:08:28Almost!
0:08:28 > 0:08:30Yargh! HE GROANS
0:08:30 > 0:08:33Yargh! Ha-ha! Got 'em!
0:08:38 > 0:08:42KWAZII GROANS Shellington! Pearl! Wake up!
0:08:42 > 0:08:44BOTH WHIMPER
0:08:44 > 0:08:45- BOTH:- Jumping jellyfish!
0:08:45 > 0:08:49Shellington, the kelp! Grab the kelp!
0:08:49 > 0:08:51SHELLINGTON GROANS
0:08:51 > 0:08:54- Argh!- Hold on tight, mateys!
0:08:57 > 0:09:01Yargh! We've got to get back to the kelp forest!
0:09:02 > 0:09:04ALL GROAN
0:09:04 > 0:09:09It's no use, Cap, the urchins are already getting through.
0:09:09 > 0:09:13- SHELLINGTON:- This looks like a job for a keystone species!
0:09:13 > 0:09:14Shellington!
0:09:16 > 0:09:19The urchins will keep coming back to the kelp forest
0:09:19 > 0:09:22unless we move them somewhere with plenty of food.
0:09:22 > 0:09:23HE GASPS
0:09:23 > 0:09:25That rocky reef!
0:09:25 > 0:09:27There's plenty of algae for them to eat there.
0:09:27 > 0:09:31But what about the urchins that are already in the kelp forest?
0:09:31 > 0:09:33Pearl, I hope you're hungry.
0:09:33 > 0:09:36Reporting for urchin duty!
0:09:40 > 0:09:45All right, Octonauts, start moving urchins to the rocky reef.
0:09:59 > 0:10:03It's working! The urchins like it here!
0:10:03 > 0:10:04Keep it up, Octonauts!
0:10:11 > 0:10:13That's the last one, Cap.
0:10:13 > 0:10:16Thanks, Tweak. Good work, everyone.
0:10:16 > 0:10:19The red urchins are gone and the kelp forest is safe.
0:10:19 > 0:10:22Oh, thanks, Octonauts! I don't know
0:10:22 > 0:10:25what I would have done without all your help.
0:10:25 > 0:10:28- Oops! Missed one! - SHE LAUGHS
0:10:31 > 0:10:33Peri! You did it!
0:10:33 > 0:10:36Your first red urchin!
0:10:36 > 0:10:38From now on it looks like you'll
0:10:38 > 0:10:40have some help with your urchin duties.
0:10:40 > 0:10:43PERI LAUGHS AND BURPS
0:10:43 > 0:10:45PEARL LAUGHS