In Cleveland, for Detectives Kathleen Carlin and Tim Entenok, friends are the key to solving the murder of a father shot in the back. And in Dallas, can a surprising lead help Detective Brian Tabor catch up to the killer of an elderly man?

Dallas Detective Dwayne Thompson hunts for a band of carjacking killers that are terrorizing a neighborhood. And in Cleveland, an argument among friends spins out of control when one of them makes a deadly decision.