In this 1970 science fiction film directed by Ted Post, the story continues the saga of a world where intelligent apes dominate and humans struggle for survival. The plot follows an astronaut who crash-lands on the planet and discovers a hidden society of telepathic mutants living beneath the surface. Starring James Franciscus and Kim Hunter, the film explores themes of war, peace, and the nature of humanity. While it did not receive any major awards, it remains a notable entry in the franchise for its ambitious narrative and social commentary. The movie can be viewed on 123Movies / Movies123 for free.