Architect Wilbur Post (Alan Young, The Time Machine) and his wife Carol (Connie Hines) move into a beautiful new home complete with a barn in the backyard. When Wilbur takes a look in his new barn, he finds that the former owner left his horse behind. This horse is no ordinary horse . . . he can talk, but only to Wilbur, which leads to all sorts of misadventures for Wilbur and his trouble-making sidekick .