The Justice League needs a covert team that could operate on the sly, so who better than experienced crime fighters Robin, Kid Flash and Aqualad? Together with Superboy, recently rescued from the top-secret Project Cadmus, and the crush-worthy shape-shifting alien Miss Martian, these teens are ready to stop being sidekicks and start taking down their own villains-like League of Shadows and the Joker-all on their own. But Superboy may have a secret mission of his own to complete ... destroying Superman!