"The Joker has been mysteriously released from Arkham Asylum, and he's none too happy about what's happened to his Gotham City rackets while he's been away. What follows is a harrowing night of revenge, murder, and manic crime as only The Joker can deliver it, as he brutally takes back his stolen assets from the Penguin, the Riddler, Two-Face, Killer Croc, and more"--
