The Littlest Fish just wants to play but the shark, octopus, crab, and jellyfish he meets have other, more culinary, ideas. Then he sees a great fish who is in terrible pain. He's swallowed something that doesn't agree with him. Using his unique headlight, the Littlest Fish goes into the great fish only to discover Jonah. Devising a clever plan the Little Fish gets Jonah out of the big fish and on his way.