The Harley Quinn Story Pack is an Arkham Episode and DLC for Batman: Arkham Knight. It follows Harley Quinn as she breaks into the Blüdhaven Police Department to rescue Poison Ivy. The DLC story lets you play as Harley Quinn in the story pack and in AR challenges and comes with the Classic Harley Quinn Skin. It was initially released with preorders of Batman: Arkham Knight, but became available with the Seasons Pass on July 23, 2015, and for separate purchase on August 4, 2015.
Taking place before the events of Batman: Arkham Knight, Harley Quinn breaks into the overgrown Blüdhaven Police Department to recruit Poison Ivy to be part of Scarecrow's plan to destroy the Batman. She searches around the building with the Penguin's help to find out the location of Ivy's cell. After taking out numerous officers, she finds a computer with security camera footage and finds that Ivy is in the basement.
Harley makes her way down to the basement using an elevator, only to be stopped suddenly by the remaining officers. She exits through the top of the elevator and finds that the basement is protected by more officers. By aggravating Ivy's plants to swallow the cops, she is able to secure the basement and continue forward. She finally finds Ivy, but is halted by Nightwing. After dodging his attacks, she defeats him and he is taken away by Ivy's plants. The pair then leave for Gotham City to meet Scarecrow.
- Harley Quinn
- The Penguin (voice and Game Over Screen only)
- Poison Ivy
- Blüdhaven Police Officers (possibly deceased)
- This is the first time in the Arkham Series where the player takes control of Harley Quinn.
- While Psychosis Mode is active, Harley converses with her old self Dr. Harleen Quinzel; Harleen attempts to get Harley to see that she was nothing more than a puppet for the Joker to abuse, but Harley refuses to accept the truth. Possibly, this was a form of conscience for Harley.
- Harley is the only playable character who can't do silent takedowns, rather she can only do a "Loud Takedown" because she claims that "Quiet is not in her vocabulary."