Creation of Task Force X
Attacked by the Joker
After learning of Belle Reve and Task Force X, The Joker and his men head for the Laboratories. They quickly took down the building's security, before cornering Doctor Van Criss in a safe room. The Joker then threatened to kill his wife, who was being held hostage, if he didn't open the door. After Van Criss surrendered, The Joker forced him into helping him disarm the nanite inside Harley Quinn's neck (the latter being in Midway City).