Little Blue is an intrepid little character who lives in an upturned boat with his mum and dad off the coast of Southern Australia. His friends are Rocky, a baby rockhopper penguin with a bright yellow crest, and Joey, a little kangaroo. His enemies are Fick and Fin the wisecracking sharks, and Big Grey and his gang of burly kangaroos.

Little Blue's been invited to a party and there's a singing competition! But how can Little Blue practice, when everyone disappears as soon as he opens his mouth...?