Billy Taggart (Mark Wahlberg) has a promising career as a New York City cop until the night he is involved in a controversial shooting. Stripped of his badge, but kept out of jail by New York's popular Mayor (Russell Crowe), he re-makes himself as a private investigator.

Times are tough, and when the mayor offers Billy $50,000 to investigate the First Lady's (Catherine Zeta Jones) extra-marital activities, it seems like a straight forward payday. Unfortunately, it quickly becomes apparent that the Mayor is not at all what he seems, and for Billy to achieve redemption he will have to risk everything - possibly even his freedom.