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.
Daniel Roebuck - Rex
Cynthia Thompson - Eba (as Cindy Ann Thompson)
Darren Young - Dar
Saba Moor-Doucette - Saba (as Saba Moor)
Jeff Chayette - Argh