Rod Serling

When he gets a flat tire within walking distance of the hometown that he has not seen in twenty years, a man walks back into his own past.

Four American astronauts crashland on an unchartered planet and discover it is ruled by a race of intelligent apes who use a primitive race of humans for experimentation and sport. Astronaut Taylor (Heston) soon finds himelf among the hunted, his life in the hands of a benevolent chimpanzee scientist (McDowall).