A newly married FBI agent is drawn into an illicit affair with his star informant, resulting in a scandal that endangers all his investigations.

Omar is accustomed to dodging surveillance bullets to cross the separation wall to visit his secret love Nadia. But occupied Palestine knows neither simple love nor clear-cut war. When Omar is captured after a deadly act of resistance, he falls into a cat-and-mouse game with the military police. Suspicion and betrayal jeopardize his longtime trust with his childhood friends, but it's soon evident that everything he does is for his love of Nadia.

In South Boston, the Massachusetts State Police are waging a war on Irish-American organized crime. Undercover cop Billy Costigan is assigned to infiltrate the mob syndicate, which is run by gangland chief Frank Costello. Billy quickly gains Costello's confidence. Colin Sullivan is a hardened young criminal who has infiltrated the police department as an informer for the syndicate. Colin is rising to a position of power within the Special Investigation...