Battle for the Planet of the Apes is a 1973 science fiction film that is the fifth installment in the Planet of the Apes film series. After wise Caesar (Roddy McDowall) leads his fellow apes to victory over the humans, he tries to broker peace between the two groups. Soon, a human named MacDonald (Austin Stokey) tells Caesar that he can learn the future of Ape City if he views the archives stored in the Forbidden City. Caesar, MacDonald, and Virgil (Paul Williams) travel there to find the records, but they discover that a ragtag group of humans is living in the area. Led by Governor Kolp (Severn Darden), the humans form a plan to destroy Ape City in retaliatiation for Caesar's unwanted intrusion into their zone. Meanwhile, Caesar's arch enemy, an ape named Aldo (Claude Akins), hatches a plot to overthrow Caesar in order to become the ape leader himself.