Ooooooh! Interesting. Love the Harley and Ivy team-up. I hope that the Bludhaven location means that they’ll come up against Nightwing.
Check out the new, more detailed description from Amazon:
For the first time in the Arkham series take on the role of Joker’s psychotic side-kick Harley Quinn and wreak havoc inside the Blüdhaven Police Department. With this exclusive Story Pack experience events in the lead-up to Arkham Knight as you infiltrate Blüdhaven to rescue your partner in crime: Poison Ivy. Delve deep into Harley’s demented nature and utilize her devastating baseball bat to smash, crash and bash your way to a friend very much in need.