Collects Batgirl (Vol 1) #55, Batman #631, Batman: Gotham Knights #56, Batman: Legends of the Dark Knight #182, Batman: The 12-Cent Adventure, Catwoman (Vol 3) #34, Detective Comics #797, Nightwing (Vol 2) #96 and Robin (Vol 2) #129.
*A clash between Gotham's underworld families erupts into a wave of chaos that engulfs the city. Batman must use every available asset — Oracle, Batgirl, Nightwing, Orpheus, Onyx and Tarantula — to preserve life and contain the chaos! *Source: dccomics.com