The fifth and final episode in the Planet of the Apes series. After the collapse of human civilization, a community of intelligent apes lives in harmony with a group of humans, but a community of mutants who reside beneath a destroyed city try to conquer those whom they perceive as enemies. Footage from the previous installments is effective in providing background information as flashbacks in an attempt to bring the series to a logical finish. A later television series attempted to rekindle original plotlines with newer ones.