 After an unsuccessful attempt to take over Gorilla City, Grod is anxious to try again. This time he uses Braniac s new Brain Wave Amplifier and hooks it up to the communication system in Gorilla City. The Legion soon has all of the Gorillas in their power. Batman and Robin, Flash, and Apache Chief respond to the emergency. They are captured, stripped of their powers and become the focus of a hunt. Meanwhile, the Gorillas responding to the Legion s orders begin the conquest of Africa.