On a class excursion to a cave with stone age paintings the clumsy Rex gets lost. A mysterious crystal opens a gateway in time and sets him back to the stone ages, where he meets a group of prehistoric fellows and the gorgeous Eba. While teaching her English and doing some pseudo-research on her fellows, his main goal is to get her sleeping with him. However the curiosity of the clan chief disturbs his attempts.
as Rex
as Eba
as Dar
as Saba
as Argh
as Char
as Aka
as Casey
as Bill
as Hank
as Ralph
as Karen
as Brenda
as Rex's Father
as Rex's Mother
as Professor
as Attila
as Catso
as Oben
as Jorge
as Controller
as Crew Chief
as Assistant Controller
as Radarman
as Technician
as School Room Student
as School Room Student
as School Room Student
as School Room Student
as School Room Student
as School Room Student
as School Room Student
as School Room Student
as School Room Student
as School Room Student
as Locker Room Student
as Locker Room Student
as Locker Room Student
as Locker Room Student
as Locker Room Student