Super-powered androids appear across America and kidnap various people in top physical condition, including Black Canary. The mastermind behind this is Professor Ivo, who has begun to take on a monstrously deformed appearance as a side effect of the immortality serum he once drank (in THE BRAVE AND THE BOLD #30). His plan is to use a machine powered by the life-energies of people with a certain genetic makeup to restore his humanity. While Superman, Elongated Man, Green Arrow and Red Tornado try to prevent further abductions, Aquaman, Hawkman and Wonder Woman attempt to invade Ivo’s island base. The assembled heroes struggle against Ivo’s creations until Aquaman, disguised as one of the androids, destroys their power source, allowing the Justice League to triumph.