Bruce Wayne goes to the Gotham City Opera House along with Tommy Elliot, Selina Kyle and Leslie Thompkins. During the opera, the main actor begins acting strangely until it is revealed to actually be Harley Quinn in disguise. Harley's masked henchmen take control of the orchestra pit and begin spraying the room with gunfire. Bruce, Selina and Tommy all move to conduct crowd control. Harley tries to steal a pendant from around Tommy's neck – an important heirloom he had since he was a child.