A few months after The Joker's brief reign, a new terror sweeps over Gotham again as Arkham Asylum breaks loose and The Batman returns once again in his mighty entry.
An unknown benefactor known only as "Enygma" managed to snuck in escape and prison break tools onto Arkham Asylum which led to the massive breakdown of the the island. Hearing news of this, The Batman heads into Arkham to find the correctional facility entirely empty of the inmates that used to be there. The entirety of Gotham's scum and villainy are now scattered around the city.
The Batman would seek any help he could find, bumping into a young police officer Dick Grayson and rely on his old allies, Commissioner Gordon and Lucius Fox to stop Gotham's massive breakdown and prevent the criminals wreak havoc on the city.