When the baby of a prominent family is kidnapped for ransom, Sam Tyler is shocked to discover that his own father, Vic Tyler, may be involved. Sam's discovery leads him to face some deep dark secrets about his childhood.

Ray's shady brother may have played a role in the number of recent decapitations in which the squad is investigating. but other suspects pop up too, such as a biker, a Wall Street executive and badly disfigured man.

Crime hits home after Ray and Chris are shot by a gang member. When the shooter is found dead near a bar, Sam becomes the lead suspect since he has been working undercover as part of the gang. With evidence mounting against him, Sam must search for the real killer before it's too late for him