One full year has passed since Deathstroke's attack on Gotham City, plus three months after the Scarecrow and Hush nearly turned the city into their own sandbox of fear and death. Now, Batman has to face yet another threat, this time in the form of the sadistic serial killer known as "The Joker", formerly Bruce's once thought dead business associate, Arthur Fleck, and his psychopath for a lover, Harley Quinn. However, in combating these two new adversaries, Bruce will learn a shocking truth involving the death of Rose Wilson..
