Fan Casting Batman: Arkham Asylum

As the story begins, Batman has once again captured the Joker and is escorting him to Arkham Asylum for imprisonment. He notes to Commissioner Gordon that the capture was far too easy. Sure enough, the Clown Prince of Crime quickly escapes and springs his trap on Batman and Gordon. Batman soon discovers that the Joker has staged a takeover of the asylum, collaborating with transferred inmates from Blackgate Prison and other villains.