When millions of fish start dying off the coast of Hawaii and something is destroying hundreds of ships, the government enlists the Flock--a band of genetically modified children who can fly--to help get to the bottom of the disaster before it is too late.

With her father lost at sea, Sophie wanders aimlessly around Aqualand, a marine theme park, until an "aquanaut" breaks into the park's research lab, revealing Aqualand's dark side, and vowing to free the captive marine life with her help.

Everywhere Gray and Barkley swim, fish are whispering of a growing threat, of a shark named Finnivus who will eat anything or anyone, and won't stop until he has seized control of the entire ocean. Finnivus has an armada of vicious battle sharks to help him expand his empire, and Gray realizes that it's up to him to save the Big Blue. But first he must train with Takiza, the wise and mysterious fighting fish who has promised to teach his young apprentice...

"Sixth grader Rex Dexter uses his ability to communicate with dead animals to investigate a narwhal's mysterious death"--

"Under the sea, a crab follows its heart and its calling, bringing everyone together in the wake of a disaster"--

The inhabitants of a coral reef are threatened when a shady real estate deal started by the greedy Groper floods their area with poisonous waste.

"Mr. Fish has a fun idea! He is going to make a painting for his friends at school, and he does not need any help. He can do this on his own! But when his plan doesn't work, he may end up needing his friends after all"--

SpongeBob and Patrick visits the dentist.

The teacher and students of Class Three are so absorbed by the marine life they see while sailing on the ocean that they do not notice that they are being pursued by pirates.

The pout-pout fish believes he only knows how to frown, even though many of his friends suggest ways to change his expression, until one day a fish comes along that shows him otherwise.