Hammer Film's follow-up into the successful One Million Years B.C. is put in an ancient past when dinosaurs and humans abound. Athletic cavewomen and hairy men wander around, sweating, grunting and sacrificing blonde babes that are evil to the sun in substitution for protection from stop-motion beasts. The fun-loving, lively Sanna (Victoria Vetri), one among those sacrificial offeringsthat manages to flee within a ritual and also combines another tribe where she says'necro' lots and falls inlove with a surprisingly hairless guy.