From DC Comics:
Growing up as Robin, the Boy Wonder, Dick Grayson fought crime alongside his mentor and father figure, Batman. But as the adolescent sidekick became an adult hero, he stepped out of the Dark Knight's shadow and took the idenity of Nightwing. In this fast paced and action packed adventure, Dick becomes the protector of Gotham's sister city, Blüdhaven, after Batman asks him to investigate the murder of twenty-one gangsters in the crime-ridden town. But as Nightwing begins his investigation, he soon learns that the police force is as corrupt as the city's criminals and that he is now a vigilante without friend or ally.