The inmates of Arkham Asylum have taken over and run amok, holding hostages and dousing the madhouse with their special brand of insanity. It's up to the World's Finest to save the day, and by that, we of course mean Supergirl and Robin!

Written By:
Michael Green, Mike Johnson
Rafael Albuquerque
Rafael Albuquerque
Cover By:
Rafael Albuquerque, Christine Duarte Peter