"A bold new direction for Detective Comics as The Flash creative team of Francis Manapul and Brian Buccellato take over the creative reins! Batman finds himself knee-deep in a new mystery involving a deadly new narcotic that has hit the streets of Gotham City. Can the Dark Knight stop the threat before the entire town finds itself embroiled in a deadly gang war that could burn everything--and everyone--down to the ground? "-- Provided by publisher.