A group of astronauts find themselves crash landed on a habitable planet, where they soon discover that the evolutionary process was somehow reversed, as they find that humans are the ones who are low-intelligent, living in the jungles and the domineering species are apes, living within a modern civilized society. As one of the astronauts finds himself as the man caught up in the middle, he must choose which side to trust...but he might instead find the unspeakable truth between both!
