Batman: The Dark Knight #4 (Batman: The Dark Knight v.2 #4)

Batman must race against time to save a friend's life. But his mission may prove impossible as he reels under the weight of three hundred chemically enhanced super-criminals who stand against him. All clues point to one psychotic criminal, and all roads to a solution that will lead to one secret location... but will Batman arrive too late to stop the rage let loose on his city?