A hidden society on the planet Mars is wiped out by a deadly virus which causes its victims to burst into flames. After witnessing the gruesome deaths of his wife and daughter, a Martian policeman (manhunter) is erroneously transported to Earth by a scientist named Dr. Saul Erdel. Initially thinking the Dr. was responsible for his family’s deaths, the J’onzz threatens to kill him causing Erdel to have a heart attack. J’onzz nearly let’s him die, but rushes him to a hospital in time to be saved. Believing someone on Earth was responsible and wanting revenge for his family but not wanting to kill anyone innocent, J’onzz makes his presence known to the people of Earth by destroying shuttles and a rocket being built by NASA. He threatens to destroy more until they reveal who sent the virus to Mars. But then he is met by the allegiance of Superman, Batman, and Wonder Woman. Surprised that the Martian knows of his Kryptonian origin, Superman tries to talk him down but in his frustration J’onzz begins a fight . Proving more difficult to stop than expected, J’onzz is nearly about to kill Batman until the Flash rescues him. John Stewart, Hawkman and Hawkgirl also show up and J’onzz finally stands down. Suddenly, a fleet of Martian shuttles descend above them. J’onzz’s brother leads them causing J’onzz to believe they are there to rescue him but they begin to fire at him and the heroes. A battle ensues where J’onzz discovers his brother to be the creator of the murderous virus.
