This was the fourth in the ever-weakening series of films beginning in 1968 with Planet of the Apes. Caesar (McDowall), the ape born in Escape from the Planet of the Apes (1971), is being kept in a circus but comes to resent the human exploitation of apes so much that, with the help of a sympathetic and all too symbolic Black man (Rhodes), he incites his fellow primates to revolt. The film ends with apes victorious over humans after a bloody battle, thus laying the ground for the future situation (there has been a time-warp) of Planet of the Apes. All this is crudely simplistic.
