Read comic: Batman: Arkham Unhinged (2011)

comic
Summary:

Now that Hugo Strange is in control of Arkham City, he's even more eager to make sure every criminal is locked away...yet Catwoman and Two-Face are still on the lam. Strange gets a hot tip on Catwoman's location, setting off a chain of double-crosses, robberies and brawls! How will Batman factor into this fight, especially since Strange is looking for him, too?