“Maniacs!! You finally blew it all up!!!” “God damn you all to hell!”
In the year 3973 A.D. a space cruiser with a crew of 4 from the 20th century crashes down on a planet. The only female of the crew members died in space, the surviving 3 head out to explore the planet in search of food & water. They soon learn the planet is inhabited by intelligent apes. who enslave wild native humans for military training exercises or scientific experimentation. One of the men is shot and killed and the others are taken to the apes’ city. There, one undergoes brain surgery and is put into a zombie state. Taylor meanwhile befriends a pair of benevolent ape scientists who provide safe haven after escaping custody from a dissembled trial with a female human native. After vindicating his ape friends from charges of heresy for challenging the apes dogma and ties to a past the high council would rather keep forbidden. Taylor takes a hostage & escapes with the female. There he learns the planet is not so distant after all.