They were strangers, together to pull off the perfect jewel heist. Their simple robbery turns into a bloody ambush when they realize one of them is a police informant.

Ex-con and former special operations soldier Pete Koslow has been recruited by the FBI to go undercover and take down New York's most powerful crime boss. When he finds himself caught in the crossfire between the mob and the law, he's forced to return to prison. Koslow must now devise a plan to escape in order to save himself and his family.

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...