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.

Evidence of mutilated housewives points to a sound expert (David Keith) living unhappily with his wife (Cathy Moriarty) in Arizona.

The story involves a white supremist plot to taint the United States water supply with a toxin that is harmless to whites but lethal to blacks. The only obstacles that stand in the way of this dastardly plan are Jim Brown, Fred Williamson and Jim Kelly, who shoot, kick and karate chop their way to final victory.