Countdown #7

The Challengers, Mary Marvel and Una head to the Hall of Justice to seek help regarding Karate Kid's failing health--but when they arrive, no one recognizes them! The heroes desperately turn to Cadmus labs, but are they already too late?

Characters: Atom (Palmer), Azrael (Valley), Bane, Batman, Donna Troy, Dubbilex, Firestorm (Rusch), Forager, Hal Jordan, Harley Quinn, Holly Robinson, Jason Todd, Jimmy Olsen, Karate Kid, Kyle Rayner, Luornu Durgo, Mary Marvel, Superman