In 1950s Milwaukee the Cunningham family must contend with Fonzie, a motorcycle riding Casanova.
The Harlem Globetrotters' chartered plane crash lands on the atoll inhabited by the happily marooned Gilligan and fellow castaways, and they all must play basketball against a specially programmed squad of robots controlled by a mad scientist.
Lee Van Cleef stars as John Peter McAllister, who as a reverend master of the Ninja warrior society, deserts the order the order to search for his missing daughter in the U.S.