Sammy and Ray, leatherback turtles and friends forever, are enjoying an atoll's water and sand, shepherding new hatchlings Ricky and Ella out to sea. Suddenly, a poacher swoops in and ships them off to be part of a spectacular aquarium show for tourists in Dubai. The kingpin of the place, Big D the seahorse, enlists them in his plans for a great escape. But with their new friends Jimbo the bug-eyed blob fish and Lulu the snippy lobster, Annabel the sweet Octopus, and a whole family of penguins, Sammy and Ray hatch breakout plans of their own. That is when little Ricky and Ella arrive, determined to break in to rescue them. After a series of thrilling adventures and narrow escapes, our heroes head south to meet up with Shelly, Sammy's first and only love.

The world goes backwards on Opposite Day. The kids become adults, and the adults become kids.

A fairy tale character who is about to flunk out of fairy tale school, Jack must perform a heroic deed by Monday or fail miserably, just like his father before him. Anxious to make good, Jack sells his C.O.W. (Computer of Wonder) for a handful of magic beans and a mysterious book that records his adventures as he's having them. Accompanied by his sidekick Grayson -- a goose who ate a bean and underwent an amazing transformation -- Jack climbs the magic beanstalk to recover the fabled Harp of Destiny from the evil Giant who lives in the sky. Helping Jack on his perilous quest is the spunky Jillian, a fearless young girl whom Jack meets on his journey -- and who just may have a hidden agenda...