Dexter plots to take over both the undersea city and Illoka while Lopaka is tasked to take a sacred stone to the Quetzo temple.
Dexter is attracting nasty folk into Quetzo and is about to activate the Illoka volcano.
Flipper meets a white whale and her calf who are hiding from an exploration ship. Flipper saves the whales, who then save the exploration scientist.
While Lopaka is looking for a gift for Nola's birthday, he goes with Flipper to liberate pearls that Dexter stole.
The killer whale Orci returns to Quetzo to settle a score with Flipper, but the dolphin is able to negotiate a peace with him.
Some sawtooth sharks and their big partner Fang invade Quetzo, until Flipper convinces Fang, his partners are not his friends.
Dexter's garbage causes pain to a giant serpent. Lopaka is able to help the serpent and his overcome his fear of serpents as well.
Dexter plans to freeze Illoka with an iceberg, but instead it saves the island from drought.
Dexter takes the opportunity to star in movie by kidnapping the director, but Lopaka and Flipper come to his rescue.
Dexter's crown switcheroo causes the Illoka Chief to lose his title and put the village at stake, but Flipper and Lopaka restore the Chief's place.
Presumbaly the Chief's lost brother Bunty has returned, but it turns out to be Bunty's pet parrot. However Bunty is around on another island.
Oil pollution is affecting the people of Illoka. Help from the manatee Charlie reveals it's just one leaky barrel.
Inspired by the Illokans' new year circus, Dexter starts his own, leaving Lopaka and Flipper to recover from him the Illoka equipment he stole.
Some stonefish are ostracised in Quetzo and one of them accidentally poisons Nola. Lopaka provides the cure and the stonefish earn their place.
Dexter steals a book from Callabash and uses its secrets to build a cannon, yet Lopaka manages to prevent Dexter from using it.
Dexter starts his own campaign to run for mayor of Quetzo, but needs a wife to accomplish it, but Flipper saves Dexter from marrying a beguiling jellyfish.
A rising tide is threatening Illoka and the Milehouni build a sea wall. Dexter takes advantage of this to declare himself king of Illoka, but Flipper and Lopaka wash him with the flood out of the village.
Dexter recruits some bully boys to join him, while Flipper teaches young fish games of Finball. Dexter challenges Flipper's team to a Finball match. Despite Dexter's cheating, Flipper team narrowly wins.
Nola trains hard for an island race, while Dexter's niece Inky joins the Ocean Explorers, both determined to prove that girls have what it takes. Inky outwits Dexter, while Lopaka and Nola both win the race.
Tired from his chores, Bolo decides to make a run for it. After uniting a lost seal pup with his mother, Lopaka rushes to Bolo's rescue before the ocean current can drag him away.
Lopaka introduces surfing to his people. Dexter tries to put a stop to the surfing, an incoming waterspout puts Iloka in danger. The Milehouni make it to safety, but Dexter gets caught in the waterspout.
Hoping to earn a reputation, Dexter traps Lopaka to stage a rescue. Bolo saves Flipper from being washed ashore, while Dexter's plan doesn't work the way he wanted it.
Dexter traps Flipper in the ruins of a dolphin city and uses a diving suit to invade the island, while his sharks attack the fleeing Illokanians.
Dexter finds the Quetzo Crown. Flipper rescues Lopaka's father from a storm and Flipper's parents return and prevent Dexter's coronation.
With the absence of Flipper's parents, Dexter returns with allies to retake Quetzo. Meanwhile, Lopaka and Nola follow Bolo's trail on the dangerous Tabu Island.
Dexter steers Troy to Quetzo, so he can steal Flipper's throne. When that fails, he uses the sun's eclipse to his advantage. With help from Troy's submarine, Flipper gets his throne back.
Dexter decides to do things Troy's way to reverse the Quetzo disaster. Realising Troy's intentions, Lopaka and Flipper seek to be the first to procure the crystals.
Dexter hopes to put Flipper in a bad light during a carnival in Quetzo. He uses Puffy to lure the fish into a trap, but Flipper thwarts the ruse.
While Spike is going on a treasure hunt event, Flipper prompts Dexter to drive Troy away from Quetzo so Franny the manatee can safely give birth, but then Lopaka has to come to Troy's rescue.
Dexter plans to switch the Quetzo crown with a fake one to rig his place as ruler of Quetzo. Lopaka warns Illoka of an incoming tsunami.
Bolo wants to build a flying machine, prompting everyone else to try. Dexter believes he is destined to fly, which Troy takes advantage of to make money.
Troy and Goose brave the Temple of the Four Elements and get one of the crystals. Dexter accidentally swallows the crystal. Only Achuca berries can save his skin.
Illoka fever has affected Chief Kapuna and Lopaka goes with Flipper to acquire the cure from Dexter's grotto. Troy becomes highly interested in the curing plant.
Dexter gets hold of a Quetzo machine from the Tabu cave to invade Flipper's palace. Nola helps Lopaka find the weakness to the machine.
Dexter steals a power crystal, while Troy causes a cave in. Flipper comes to the rescue and recovers the crystal while Lopaka set off to prove Spike did not steal Kapuna's mask.
Dexter steals from Troy an ancient key to unlock a chamber in Quetzo and accidentally triggers a staff to resurrect a dinosaur. Lopaka lures the dinosaur and reverses the summoning.
After a failed attemopt to recover an emerald necklace, Lopaka locates Nola and Spike stranded on an island, and helps inhabitants defeat the Morgue beast.
Troy captures a rare sea dragon and Dexter takes a sea dragon egg. Lopaka rescues the sea dragon and her baby and has Dexter takes their place.
Spike tricks Goose into searching for Captain Cutlass' sunken ship. However their submersible puts Ray and his family in jeopardy. The ghost matter is cleared up and the ship returned to the seabed.
Lopaka and Flipper discover a power crystal that conjures storms. Goose messes with the crystal forcing Lopaka to head there and recover the crystal.
Dexter babysits his niece Inky, but barracudas kidnap her. Flipper and Lopaka assist in the rescue, while Goose and Spike face a giant spider on their day off.
Flipper captured along with Dexter and the sharks by Troy as birthday presents for her friend's son Jeffrey. Flipper convinces Jeffrey to allow him to remain free.
Dexter gets Orci to run a carnival in Quetzo for him, making Flipper feel left out. Flipper saves Orci's mother from Troy's trap and Flipper returns to reclaim his place at the carnival.
Professor Hefty and Jessica come to visit. Dexter unleashes an ancient crab, while Flipper becomes deaf from an explosion. Flipper defeats the crab, while Spike exposes Jessica as a thief.
Dexter gets hold of the fire power crystal and tries to boil up Quetzo, while the ice power crystal freezes Tabu Island. Lopaka gets the ice crystal and unites with the fire crystal.
Dexter recruits a dolphin raised by sharks named Storm to replace Flipper. Lopaka rescues Flipper, who manages to convince Storm, that Dexter used him to conquer Quetzo.
Some holidaymakers come to Illoka, giving the locals a taste of modernisation. Meanwhile, a sea snake rampages due to a tradition neglected, so Lopaka makes a tribute.
Flipper finds the power crystal control panel, then gets hold of a weapon and the final power crystal. Lopaka liberates the weapon and crystal to free Spike and Bolo from a mine.
Dexter takes all seven crystals from Flipper and delivers them to Troy. Unable to talk Troy out of her sacrificial experiment, Spike does instead. Dexter's attempt to finish the job, destroys Tabu.
A series of earthquakes affects Quetzo. Dexter returns and takes over Quetzo. Flipper and a lab dolphin named Ultra along with Lopaka drive Dexter out.
New arrivals come to Illoka consisting of Barnacle Crab, Kim and Simon. They are pirates under the guise of filmmakers. Meanwhile, Flipper aided by a reluctant Dexter rescues Ottie.
Bolo stows away on Barnacle's sub but gets trapped. Ultra faces her fear of currents to help Flipper and Lopaka rescue Bolo.
Illoka is holding a talent show and Lopaka finds out that Barnacle and his crew are actually pirates. At the talent show, Lopaka manages to expose them.
Flipper and Lopaka travel to the past, where they return the cursed statue of Neptune to the sea. In another time period they have sink the statue again when Captain Redbeard gets hold of it.
Flipper, Lopaka and their friends carry out a plan to remove Barnacle's ship. Ultra is discovered to be spying for the pirates, but she helps thwart Dexter from sabotaging their plan.
The pirates have returned. While Flipper drives Barnacle and Kim away, Lopaka saves Simon from drowning.
Simon takes Puffy away. Flipper's rescue attempt gets him captured by the pirates. Bolo trying to attack the pirates gets himself captured. Lopaka rescues them and Ultra joins Flipper.
Dexter gets hold of some dynamite from the pirates. Lopaka has no alternative but to reveal his secrets to his people. Together the Milahouni and the dolphins thwart Dexter's plan and dispose of the dynamite.
With Lopaka's secrets out, he can't get any rest. A gigantic shark causes terror, but Flipper is able to get it unwittingly to save Illoka from the unmanned pirate ship.
Lopaka sustains injuries and is marooned with Bermana on a sand bar. Dexter captures Flipper's father. After Flipper rescues Lopaka, Bermana rescues Flipper's father and Dexter's lot.
Captain Barnacle is dumping rubbish in the sea. Sparky, a solitary electric eel encouraged by Flipper helps short circuit the pirate ship.
Fed up with her uncle, Kim leaves, then gets trapped with Nola and Capuna in a ceremonial cave but sends Lopaka and the dolphins to save them. She then rescues Captain Barnacle and Simon who are trapped in a sea abyss.
A sour note from Dexter's organ hurts Flipper. Dexter takes Utra hostage, but the Quetzo fish provide Dexter with a pipe allowing Flipper to sabotage the organ and expel Dexter from Quetzo.
Dexter brings a demonic statue to life which makes all gargoyle statues in Quetzo awaken. The gargoyles turn against Dexter. Flipper and Dexter work together to dispel the magic of the statues.
After a terrible tempest storm Flipper has to rescue Inky, who was captured by vampire fish. Dexter traps Flipper, but Dolores makes Dexter rescue him.
Lopaka and Nola go on the Quest of Courage. Dexter uses a hypnosis charm to get Flipper to do his bidding. Lopaka forfeits the quest and convinces Dexter to help restore Flipper and save Illoka and Quetzo.
Dexter gets injuries, while the Pirates go to Illoka seeking food. Captain Barnacle eats a poisonous fruit, but the Milehouni provide the cure, while Quetzo aids Dexter.
A piece of space junk crashses right into the Quetzo school. Barnacle retrieves the space junk, but his rival Slapbeard takes it and captures Kim and Lopaka, but the dolphins summon the coast guard.
Kim gets a robotic shark but loses the remote to Dexter. Using the roboshark Dexter captures Flipper. The sharks free Flipper to get their jobs back. Lopaka frantically goes after what he thinks is a package of Barnacle's explosives.
Catfish burgalar Lulu La Rue kidnaps Ottie. Ultra rescues Ottie and notices before her capture the statue of Neptune. The only way to rescue Ultra is to get the pirates to winch her out, thus losing the statue to them.
Bolo's bluff about the Milehouni having the trident, gets Barnacle to kidnap Chief Kapuna. The Milehouni create a fake trident for Kapuna's release.
The dolphins and Lopaka go on a long journey, leaving Dexter free to take over Quetzo. While Ottie, Ray and Puffy outwit Dexter, Flipper's lot rescues a fish named Bluey and the pirates from a big fish.
Lopaka manages to put the pirates' radar out of action. Ultra comes across her family and with help from her friends and the pirates drive out a gang of hostile swordfish.
Lopaka, Flipper and Ultra reach the town Seadom, where superstar Dolores has Neptune's trident. Dexter comes, gets the trident and hands it to Barnacle, but Dolores helps recover it.
Dexter steals the trident and hands it the pirates. As the storms grow, Lopaka manages to persuade Kim to give up the statue. After Flipper and Lopaka drop the statue into the black abyss freeing Quetzo and Illoka from the curses.