
It portrays the detective work of a homicide department in Baltimore; Detective John Munch, Lt. Al Giardello and Detective Meldrick Lewis deal with murder cases.

A prominent Baltimore citizen (James Earl Jones) finds himself embroiled in a murder case when an employee is found dead.

During questioning about Judge Gibbons' death, Junior Bunk (Mekhi Phifer) sprays the squad room with gunfire, injuring officers.

The squad prepares to bring down the Mahoney clan at all costs; wounded Bayliss fights for his life; Kellerman's day of reckoning arrives.

Murders in Little Italy involve Giardello's family; the unit regroups with two new detectives, Rene Sheppard (Michael Michele) and Mike Giardello (Giancarlo Esposito).