Batman: Cacophony

Synopsis
At the start of the series, Deadshot breaks into Arkham Asylum, attempting to kill The Joker, until another villian shows up. This unnamed villian defeats Deadshot and and leaves the Joker hiding in the bushes. Meanwhile, Batman is saving two children from Mr. Zsasz, who had just killed their parents. After taking the children to the police, Batman recieves word of the Break in at Arkham.