The magical bedlam begins when Devo Mannix, a sorcerers apprentice, volunteers his services for a worthwhile school project. Devo is the grandson and the apprentice to the world-renowned wizard and magician, Sargo Mannix. Devos family and friends foresee that Devo has committed himself to a task he will be unable to perform by himself. Everyone pitches in attempting to help Devo with his undertaking. Unfortunately, their good intentions only add mayhem to what was originally a simple task. Devos talking dog, Speeler, also lends a helping paw when he realizes that his master is in trouble. Speeler, having learned that he can also cast magic spells, hinders Devos good intentions by casting his own spell. Devos father believes that magic spells sometimes do not produce the intended results. Tom Mannix asks his son not to use magic on a project he is working on with him. Finding out how to fulfill his promise to his father without the use of magic causes Devo to become the object of ridicule and numerous reprimands and tests Devos abilities as a sorcerers apprentice