Ten years before the events of Arkham Asylum, Batman, at age 27, is on the verge of completing his second year of crime fighting. For the most part, he is used to fighting those who are weaker and slower than him. That all changes on Christmas Eve when Black Mask puts a $50,000,000 bounty and a one night deadline on The Batman's head.
The bounty has drawn the attention of eight of the best contract killers in the world (Deathstroke, Killer Croc, Deadshot, Firefly, Bane, Shiva, Electrocutioner, and Copperhead) whom one by one Batman has to defeat while at the same time dealing with the crazed clown like villain The Joker, while earning the trust of Police Captain James Gordon and Gotham City.
