The Special Prosecutor sets his probe in motion; Sam and Bruno are concerned about the loyalty of a powerful labor leader; Toby and Josh are preoccupied with a congressional battle…

The discovery of a strangled prostitute’s body leads to a case involving illegal immigrants and the events have an impact on a family.

Taking on an apparent mafia murder, Detectives Briscoe and Curtis are stymied by a dead witness and a seemingly incoherent mob boss.