Continuing the incredible evolution of the new Batgirl, the successor to original Batgirl Barbara Gordon. But can a young girl trained as a lethal assassin ever cast off her tainted past? She is not ready. Not fit to wear the costume of Batgirl. So decides Batman, and before it has truly begun the career of the new Batgirl is over. Or is it? The new Batgirl is determined to prove she is ready, so much so she's willing to go it alone, against the Dark Knight's deadliest foe, the Joker! Story continues from Batgirl: Silent Running.