Cathy Yan
After splitting with the Joker, Harley Quinn joins superheroines Black Canary, Huntress, and Renee Montoya to save a young girl from an evil crime lord.
A twisted tale told by Harley Quinn herself, when Gotham's most nefariously narcissistic villain, Roman Sionis, and his zealous right-hand, Zsasz, put a target on a young girl named Cass, the city is turned upside down looking for her. Harley, Huntress, Black Canary and Renee Montoya's paths collide, and the unlikely foursome have no choice but to team up to take Roman down.