The story involves a white supremacist 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 plan are Jim Brown, Fred Williamson, and Jim Kelly. The story involves a white supremacist 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.