Olympic champion Mary Lou Retton hosts a program of high-energy fun for kids that focuses on physical fitness, health, nutrition, hygiene, confidence building, and positive thinking. Characters include Jumpy, Mary Lou's sidekick and best friend; Miss Warble, the Flip Flop Shop custodian; Mr. Bump, the gangly, charming, clumsy delivery man; Professor Blinky, the wise owl professor; and L.Z Bones, the one who always has an excuse for why he can't get up and get moving.