After Catwomans encounter with Batman, she heads thru the nearby hallways of the warehouse. She hears a large slamming noise on the other side of the door at the end of hallway, she silently slides against the wall and strafes the hallway.
Once at the door, she tries to open it. It was stuck on something, so she equips her whip, backs up and flicks her wrist. The whip effortlessly wraps around the door knob. Catwoman grasps the whip handle and tugs on it, the door knob rips right out of the door.
She opens the cracked door and walks into the room, and right on to a pressure plate. A large metal blast door slides over where the door was.
Catwoman then realized she was trapped in a completely empty room, the floor on the other end of the room started becoming electrified. A large projected 5 minute timer appears on the farthest wall the floor panels started electrifying. Catwoman knew that she was wasting time.
She noticed a vent grate on the ceiling. She uses her whip to open the grate. she grapples up and quickly crawls thru the vents, soon afterwards she finds herself on the roof, she starts running and as soon as Catwoman jumps of the roof the warehouse exploded.