Batman and Catwoman retreat to the lower levels of Poison Ivy's penthouse. Batman removes a Kryptonite ring from his utility belt in preparation for dealing with Superman. Superman smashes through the wall, and Batman immediately takes the offensive, battering him with a flurry of blows, while the Kryptonite in his hand steadily weakens Superman. Although he is under Poison Ivy's control, there is still a part of Superman's true intellect that keeps him from using his full strength against the Dark Knight.