villains and rescue Lois, but the Kents' unborn son is exposed to gold kryptonite, meaning he will never develop superpowers. The Kents decide to keep the knowledge of his heritage a secret from the boy. In an epilogue set in 1950, Bruce's wife is revealed to be expecting as well. 1959: Strange Days — Aliens in need of a champion ask Bat-Mite and Mr. Mxyzptlk to test each other's respective heroes; fortunately, Batman and Superman trick the two imps into turning on each other and convince the aliens to take them instead. Batman and Superman also face the problems of age and family. Bruce shortly thereafter retires and Dick Grayson eventually takes over as Batman in the 1960s, while Bruce Wayne Jr. ("B.J.") trains to become the new Robin. When the Kents discover their daughter Kara is developing superpowers, they give her a red sun radiation necklace created by Superman so that Kara can live a normal life without her powers. In the closing panels, an aged Lex Luthor reveals to young Joel Kent the truth about his heritage. 1969: Changing Times — Kara Kent now helps her father as Supergirl, while Lois Kent is diagnosed with cancer, and Joel Kent is reported MIA in Vietnam. Dick Grayson, the new Batman, confronts the Joker Jr., who is actually an aged Joker in disguise. The Joker kills Grayson in an elaborate trap, but Bruce Wayne Jr. (the new Robin) switches uniforms with the fallen crimefighter so that the Batman legacy can continue, letting the public believe that the Joker killed Robin rather than Batman. 1979: Twilight of the Gods — Batman and Supergirl (or Superwoman as her father thinks of her) have become a heroic team and, as Bruce Wayne Jr. and Kara Kent, plan to marry. Lois is still alive, thanks to her physician Dr. Holurt. Bruce and Kara's wedding is disrupted by a super-powered Joel Kent (Joel faked his death in Vietnam after Luthor convinced him that Superman deliberately exposed him to gold kryptonite so Joel could not replace him). Joel attacks and violently kills Kara. Dr. Holurt reveals himself to be a disguised Lex Luthor; he shows the world that Clark Kent is Superman, then kills Lois. Joel's powers are the result of a serum created by Luthor but, as Luthor knows, the serum is unstable and Joel dies a few minutes after killing his sister, living just