Get ready for the upcoming blockbuster videogame with this exciting lead-in miniseries written by the game's writer, Paul Dini (BATMAN: STREETS OF GOTHAM). The focus this issue shifts to The Clown Prince of Crime and his crazed paramour, as The Joker and Harley Quinn set up their new love nest in the old Gotham Metal Works. What role are they looking to play in the new Arkham City - and is Batman even in a position to do anything about it?