Scottish Play Doe—aka Scott—is used to being a little different. Sometimes he hallucinates things no one else can see. Mermaids. Unicorns. A talking rabbit-man in tweed pants.

But then one of these hallucinations tries to steal Scott's backpack, and he comes face-to-face with an honest-to-goodness leprechaun named Mick who's on the run from, of all things, the Goodco Cereal Company.

With the help of their friends Erno and Emily, Scott and Mick uncover Goodco's sinister plans—and take the first steps in saving the world from the evil cereal company.