Small-town boy Shawn MacArthur (Channing Tatum) has come to New York City with nothing. Barely earning a living selling counterfeit goods on the streets, his luck changes when he meets scam artist Harvey Boarden (Terrence Howard). As Shawn’s manager, Harvey introduces him to the world of bare-knuckle street fighting. Almost overnight, he becomes a star brawler, taking down professional boxers and martial arts champs in a series of staggeringly intense bouts. Now he faces the toughest fight of his life.