In the near future, humanoid apes are used as slave labour by brutal humans. An intelligent chimpanzee, the son of two apes from a further distance in time, conceals his ability to speak and lives under the protection of a kindly circus master. But when he is exposed, he leads his fellow simians in a violent uprising. Sci-fi drama, presenting an origin story for the original movie, starring Roddy McDowall and Ricardo Montalban