Captain Marvel Jr. coma after being thrown into the lake by Nazi, and Freddy is found to have a severely injured spine and a broken leg, which will prevent him from ever walking again. After a second attack from Captain Nazi, the injured Freddy is taken to the wizard Shazam by Captain Marvel and his sister Mary Marvel, who both grant the boy the power to become Captain Marvel Jr. However, Jacob dies, and Captain Marvel Jr. goes on a rampage against Captain Nazi until the other Marvels intervene. Nazi and Captain Marvel Jr. would become arch-enemies, regularly pitted against one another. Junior
Captain Marvel Jr. Junior returns to Fawcett (and "The Power of Shazam!" comic with issue #42) and makes amends with Captain Marvel. Another superhero team, The Outsiders, found themselves in a battle against Ishmael Gregor, who had killed Timothy Barnes and stolen his Sabbac powers. Captain Marvel Jr. arrived to help the Outsiders dispatch Sabbac, and some time later Junior would join the team for a brief period. Following the "Infinite Crisis" crossover event, Junior briefly joins the depleted Teen Titans roster during the weekly "52" comic book series, and is part of the wedding party for his former enemy Black Adam's marriage