After the detectives find a murdered postman and a woman who was left for dead in her apartment, the investigation leads to a serial killer and a surprise.

The murder of a drug-laden teen presents the detectives with a host of suspects from her wealthy family.

When an hispanic male is found dead from a severe chest trauma, Detectives Briscoe and Green discover that he and two other illegal immigrants had been in a staged automobile accident. As evidence mounts linking numerous similar car crashes with the same employer, chiropractor, insurance adjuster, and lawyers, A.D.A.s McCoy and Carmichael must determine who is ultimately responsible for the man's death, from which so many others profited.

The investigation into the death of a private investigator uncovers corruption, deceit, and immigration fraud in a Youth Baseball League whose manager will go to any lengths to win.