"Hush, Chapter 4 of 12: The City"
*Batman and Catwoman share a romantic moment, then agree to head towards Metropolis to track down Poison Ivy. Heading to the city of tomorrow as Bruce Wayne, Batman encounters Tommy Elliot, who doesn't think he should be up and about yet. Both he and Catwoman track down Ivy's location, but Catwoman gets there first, to exact her revenge on the botanical villainess. By the time Batman arrives, Poison Ivy unveils her secret weapon: Superman is under her spell... *Source: DCUGuide.com