James Whitmore

Four American astronauts crash-land on an uncharted 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 himself among the hunted, his life in the hands of a benevolent chimpanzee scientist (McDowall)

The fourth season of this classic groundbreaking series saw the beginning of one-hour episodes. This allowed for more elaborate and detailed stories which plunged viewers even further into the twilight zone.