Glitz challenges Ricky to an adventurous contest: The first to bring back a shark tooth to the reef will be called the bravest in the ocean.

When a terrifying unknown creature attacks the reef, Big Boss plays protector and makes a move to take over, but the children smell something fishy.

Ella's admirer, Babbles, becomes jealous of Ricky, who gets to spend more time with her, so he sets a trap for his rival and gets caught in a jam.

When Albert and his pilot fish, Alpha, won't stop fighting, Ricky and Ella find Alpha a new job with a barracuda, but the pair drives everyone crazy.

Thirsty for adventure, Ricky dreams of leaving the reef and fighting fearsome predators, so Sammy must find a way to show him he is still too young.

When Ricky and Ella hunt for a magnifying glass for Pipo's nearsighted father, Ella gets locked inside a human hut, and Ricky must save her.

In order to teach the students to tolerate each other, Lulu organizes a pearl hunt, creating teams of mixed fish, but collaboration seems impossible.

When a boat sinks near the reef with a seagull trapped inside, the turtles decide to save him. But poor Pipo doesn't know he's being tricked.

When divers armed with nets and a harpoon capture Pipo and endanger the reef, Ricky, Ella and Annabel must save their friend and scare off the humans.

Irked by Big Boss treating him like an idiot, Philip decides to go back to school, but his brother Marco misses him so much that he cannot do his job.

In the village, everyone is a vegetarian. But when Big Boss steals all the food, Albert struggles to hold on before giving in to his old appetites.

Hungry seagulls hunt for Ella and Ricky and will stop at nothing to make a meal of them. Stuck on a high branch, Ricky suffers from vertigo.

When a turtle of Ricky and Ella's age pretends to have braved many great dangers in the oceans, Ella succumbs to his charms, and Ricky feels jealous.

When Ricky's grandmother tries to spruce herself up and accidentally glues her eyes shut, Ricky guides her on a risky journey to find help.

When Ricky pretends that he has a terrible illness to get out of school, Ella, Pipo and Annabel do everything they can to try and find a cure.

When a dance contest is arranged for the reef fair, Pipo gets weary of the turtles ignoring his choreography instructions and joins the Rockfish team.

When fishermen capture Lulu's cousin, Ricky and the gang find him being held prisoner in a lobster farm and try to set all the captives free.

Unfairly punished by Lulu because of the rockfish, Ricky takes revenge by damaging the palaver tree and laying the blame on Glitz and her crew.

The seagulls lure Ricky and Ella to the beach to put them on their dinner menu, and the duo's one seagull ally gets hit on the head by a coconut.

In a spoof of "The Lord of the Rings," Sammy thinks that a ring found in the reef holds a curse and forms a team to go toss it into a bottomless pit.

When pilot fish Alpha leaves the reef at night and refuses to tell his partner Albert where he goes, Ricky and Annabel follow him to learn his secret.

Sammy worries when there is no news of Big Boss for a while, and Ricky tries to get information by pretending to switch sides and join the Rockfish.

When Big Boss tries to take control of the reef by pretending that he's clairvoyant, Ella and Annabel reluctantly escort Pipo to his psychic reading.

While the children spend the night together under Lulu the Lobster's watch, a strange light wakes Ricky and Glitz up, and they go off to investigate.

When the rockfish refuse to share the playground with the turtles, a sports tournament is arranged to settle the dispute. But the rockfish play dirty.

When Lulu tells the class about a legendary treasure exhibited each year during a secret ceremony, Glitz hatches a risky plan to make her way inside.

When Billy the clownfish brags about how important and funny he is, Ricky makes the mistake of letting him know he disagrees.

When the gang meets a small, frightened fish who got out of the big aquarium by mistake, they try to teach him the basics of living in the wild.

The children get excited about an upcoming solar eclipse and decide Leonard's aquarium is the ideal place to see it. But is there room for everyone?

When Pipo's grumbling drives Ricky and Cie to the limit, they try to find a way to change his nature, but learn a hard lesson instead.

Pipo is heartbroken when his father wants to move away to a quieter place, so the other turtles try to make their friend's dad change his mind.

Ella and Ricky try to help blobfish Jimbo seduce the octopus of his affection by boosting his confidence and convincing him that he is handsome.

When Ray embarrasses himself after bragging about his youthful strength, he decides to exile himself, but Ricky will not let him go without a fight.

When Big Boss's mother comes to visit, she seems to be her mean son's opposite, but beneath her mask of kindness lurks a tyrant with an evil plan.

When a pregnant turtle lays her eggs on the beach, Ricky and Ella go to watch them hatch and discover that the eggs have been stolen by seagulls.

When Ricky and his pals invite a group of exhausted tourists to spend the night in the reef, Big Boss sees an opportunity to make trouble.

When Ricky and Ella pretend to disagree, their fight turns real, leaving Pipo and Annabel to try and make peace between their friends.

After being unfairly treated, Ella leaves the village dreaming of a perfect reef. But when her dream comes true, her nightmare begins!

When Sammy rescues Big Boss from a giant squid's attack, he gets trapped in a crack in the Bottomless Hole. Will the seahorse help out his old enemy?

Ella seems to be so unlucky that her friends shun her. But when she gets near Annabel, her fortunes change so much that she loses any fear of danger.

Ricky babysits for little Marius and boasts of his heroic adventures. Inspired, Marius ventures beyond the reef and exposes himself to great dangers.

The friends create a new game of skill that causes a sensation in the reef, but when Big Boss takes it over and opens a gaming room, all bets are off!

When Sammy punishes the children for misbehaving, Ricky complains that he is uncool. But when a super-cool version of Sammy appears, trouble awaits.

When a baby shark gets caught in the reef, the village quarrels about whether the children should keep him as a playmate or return him to the sea.

When Sammy and Ray get captured by a fishing boat, Ricky, Ella, Rita and Shelly have one night to find their way aboard and save the two grandfathers.

To convince the other seagulls that he is not a traitor, John pretends he will eat Ricky and Ella, but Sammy and Ray think it is happening for real.

When Big Boss decides to invade the reef, he replaces his moray eel sidekicks with his godchildren: baby seahorses he wants to mold in his image!

Leonard the Crab only has one friend: his garden gnome, Norbert. Ricky and Ella decide to show him how great it is to have real friends.

Inspired by a romantic tale he heard in school, Crudd goes on an adventure to conquer Glitz's heart. Worried, his friends go on a quest to find him.

When Ella, the reef's best student, loses a school competition to Annabel, she decides to leave the reef, and Big Boss takes advantage.

Big Boss gives up on becoming the leader of the reef and takes his minions off on new adventures, until a school of barracudas teaches him a lesson.

A huge party for Ricky and Ella’s eighth birthday is about to begin, but Ricky has gone missing, and a worried Ella must go find him.