Arkham Asylum: Living Hell #4

Someone at the Asylum has left all the cell doors open! Now Dr. Arkham and the guards are left to face a horde of a thousand maniacs... including a ticked-off Killer Croc! A riot breaks out at Arkham. Two-Face and Joker escape. Cash has to deal with Killer Croc again, who took his arm a while ago. Arkham takes Croc out. Magpie and Poison Ivy escape. Demons threaten the asylum.