After Fulla T, a local rapper who was encouraging his fans to report crimes when they heard about them, is cuddled outside a radio station, Logan and Wheeler find themselves reluctantly partnered up with Harry Williams, a detective from the gang unit. Wheeler is willing to give Williams the benefit of the doubt, but when their witness begin to turn up dead or missing not long after Williams learns they're looking for them, Logan begins to wonder just what side of the law Williams is really on.
Det. Robert Goren is an exceptionally bright homicide investigator with well-honed instincts that match up favorably with his criminal quarry. Likewise, his partner, Det. Alexandra Eames, brings an independence and stylish edge to her work that meshes well in tandem with Goren. They were joined by Mike Logan, who has finally worked his way back from a ten-year exile to Staten Island, and Carolyn Barek as a devoted Catholic detective whose religion plays a part in everything she does.
Their commanding officer, Capt. James Deakins, is a competent but ambitious political character who knows how to survive and thrive behind the scenes. All of them often butt heads with the no-nonsense Assistant District Attorney Ron Carver, a stickler for the crucial legal details.