The true story of Whitey Bulger, the brother of a state senator and the most infamous violent criminal in the history of South Boston, who became an FBI informant to take down a Mafia family invading his turf.

Doug MacRay is a longtime thief, who, smarter than the rest of his crew, is looking for his chance to exit the game. When a bank job leads to the group kidnapping an attractive branch manager, he takes on the role of monitoring her – but their burgeoning relationship threatens to unveil the identities of Doug and his crew to the FBI Agent who is on their case.