Under the sea, fish do what fish do: seahorse hides, pufferfish puffs up, parrotfish crunches coral, and Crab... bakes cakes? Scallop swims, dolphin blows bubbles, and... Crab bakes cakes. And so life goes on, until one night when everything changes with a SPLASH! In the face of total disaster, can Crab's small, brave act help the community come together and carry on?