“These primal brutes wanted it all from my body…” When the young, sexy Krystal stumbles into a hidden laboratory, she accidentally switches on a time machine that brings her face-to-face with a musclebound, studly caveman! This caveman doesn't know how to take "no" for an answer at all, and has never even heard of using protection. And as it turns out, the alpha caveman has lots of cavemen friends—and they all want a turn with the fertile Krystal!