When Molly volunteers to look after Sammy McHamsterhead, the class pet, for the weekend she has visions of training him to do tricks and becoming rich and famous--but when she leaves the cage open and Sammy escapes she realizes that she has to find him or confess her carelessness to her teacher, Mr. Rose.

Eraser training -- Top hats and hamster tails -- Lots of glitter -- The disappearing Sammy trick -- What's that squeaking sound? -- We need some green goo -- Silly squirrel squares.