A mystery being known as the "Golem of Old Gotham," starts stopping crime from armored men. Both Katana and the police suspect it to be Batman, but he tells Katana that he isn't. While in patrol they find the Golem and begin chasing him, however it is in the area where Batman parents were murdered and begins to have flashes of the event. Katana asks what's wrong, but Batman says that nothing is wrong. After a lengthy chase, they are forced to stop when the police get involved, for Batman doesn't want a confertation with the police, at least not yet; instead they go back to take a look at the armor the men were wearing. Soon, Batman and Katana team up with Rex Mason (who has been classified as the "Golem of Old Gotham") as they combat an army of armored thugs that have been terrorizing several parts of Old Gotham after they were supplied the high-tech armors from Stagg Enterprises. In addition, they also dodge Harvey Dent's newly created Special Crimes Unit, which has been ordered to take down both the armored criminals and the vigilantes fighting them. After the fail attempt capture the vigilantes, Dent is approached by Anarchy to help bring down Batman. Batman figures it out that it was Sapphire who give armor to the thugs. Batman warns her that she does not want be his enemy; she asks if the man she saw was Rex, but he denies that it was him.
Note: At the end of the episode, Rex ends up taking the codename "Metamorpho" and alludes to the future emergence of the Outsiders.