An U.S. Spaceship lands on a desolate planet, stranding astronaut Taylor in a world dominated by apes, 2000 years into the future, who use a primitive race of humans for experimentation and sport. Soon Taylor finds himself among the hunted, his life in the hands of a benevolent chimpanzee scientist.

Astronaut Brent is sent to rescue Taylor but crash lands on the Planet of the Apes, just like Taylor did in the original film. Taylor has disappeared into the Forbidden Zone so Brent and Nova try to follow and find him. He discovers a cult of humans that fear the Apes' latest military movements and finds himself in the middle. Tension mounts to a climactic battle between ape and man deep in the bowels of the planet.

The world is shocked by the appearance of two talking chimpanzees, who arrived mysteriously in a U.S. spacecraft. They become the toast of society; but one man believes them to be a threat to the human race.

In a futuristic world that has embraced ape slavery, Caesar, the son of the late simians Cornelius and Zira, surfaces after almost twenty years of hiding out from the authorities, and prepares for a slave revolt against humanity.

The fifth and final episode in the Planet of the Apes series. After the collapse of human civilization, a community of intelligent apes led by Caesar lives in harmony with a group of humans. Gorilla General Aldo tries to cause an ape civil war and a community of human mutants who live beneath a destroyed city try to conquer those whom they perceive as enemies. All leading to the finale.