Haunted by recurring dreams of Hea-Thor, a gorgeous cavegirl,and a menacing Allosaurus, action-movie star Tony Markham soon finds himself transported, by means of a magic Icon, back through time to Dinosaur Valley. Now trapped in world of dangerous dinosaurs, grunting cavemen and a tribe of exotic, love-starved cavegirls, Tony must put his modern-days skills to extreme tests in order to survive prehistoric perils, win the cavegirl of his dreams and (maybe) return to his own time?