Absorbed in his search for food, a shy hermit crab, disguised in a fancy new shell, inadvertently rescues a flounder caught beneath a trap and wins the admiration of the other marine animals.

The wicked Mantora sets another trap for the young mermaids by littering a beach where a seal family lives, and Scarlett's bossiness interferes with the clean-up effort, further delaying the mission to bring the magic crystals home.

"Follow Crab as he learns 13 easy yoga poses with the help of his seashore friends. Crab will practice first, and then it's your turn! Look at the pictures, then follow the instructions to learn the poses. See Crab float like Seal, balance like Seagull, and puff out like Clownfish -- can you do it, too?"--Back cover.

Crabby is a very grumpy crab, so Plankton tries to find a game that will cheer Crabby up, but Crabby does not want to play Simon says or hide-and-seek--will a game of tag be more to Crabby's taste?

"This is Crab. Join him for a cl-awesome adventure and explore the wonders of the ocean. Let's dive right in!"-- Back cover.