A young Selina Kyle (feels good to mention that name again) has gotten herself into a sticky situation, having planned to rob a massive party for the rich, being held during the Zero Year storm, but finding quite a bit of armed resistance in her way.
Everything started 9 hours earlier after Selina mugged an asshole trying to take a cab from an old lady, but turns out, she ended up stealing a whole bunch of rock climbing equipment. Bringing it to her old fence Lola, she learns that she can't really sell it at the moment, as everyone is stocking up on food, batteries, etc. So Selina heads to the local store to stock up herself, but instead of stealing everything, she plans to buy it, as the shop owner is an honest man who looks out for the neighborhood... Then a rich man by the name Arnett Crocker shows up, and has his men "buy" all the supplies for himself. Selina tries to stop Crocker's men from taking everything, but one of the bigger guys ends up hitting her, as the rest take all the supplies.
So having used the rock climbing equipment to sneak onto Crocker's building, Selina infiltrates the party in a borrowed dress, and pretends to be a "gift" sent by one of Crocker's friends for his enjoyment. Crocker takes the bait, hook, line and sinker, and leads Selina to one of his back rooms. But before they get there, one of his men tells him his meeting has been arranged, and as Selina spies on it, she sees Crocker selling off some of those prototype batteries (see Detective Comics #25) to a man who miiiiiiight be Carmine Falcone?
Unfortunately for Selina, Crocker's man eventually recognizes her, and brings her into the room, where Crocker tells the man to kill her. So when Selina's faced with a knife, she brings out the last thing she lifted from one of Crocker's kinky back rooms, a whip, and does what she does best, and ends up knocking out and tying everyone up. Selina then lifts the batteries for her neighborhood, but also decides to help herself to Crocker's open safe as well.
In the end, Selina doesn't think of herself as a hero, nor a master criminal, but she's still pretty proud of herself and thinks with some practice, anything could be possible.