Shark is big and scary and all the other fish are afraid of him. But with no one to play with Shark is lonely. One day Shark sets off with a mysterious bag. One by one he snaps up Lobster, Octopus, Starfish, Turtle and Jellyfish who have no idea what's going on. The fish are very worried they might get eaten when suddenly they are poured out of the bag, to find a huge cake Shark made all by himself! All he wanted to do was share it with them!