"Gotham City has been overrun by craziness, and the power is out at Gotham Academy. There’s a mob of Jokerized madmen in Gotham City, and they’re determined to spread the virus into the world beyond--but they’re gonna have to get past Batgirl first. What do Batman’s villains do on the craziest night in Gotham City? The city is overrun by Jokerized victims, but a small band of teenagers unites to take a stand. Their secret knowledge of Gotham City’s streets helps them survive, but will Batman take help from this young group of upstarts?" --