An ex-Marine haunted by a tragic past, Tommy Riordan returns to his hometown of Pittsburgh and enlists his father, to train him for an MMA tournament awarding the biggest purse in the history of the sport. As Tommy blazes a violent path towards the title prize, his brother, Brendan, returns to the amateur ring to provide for his family. The two brothers must finally confront the forces that tore them apart, all the while waging the most intense, winner-takes-all...

Inspired by the story of a real-life hero, Huo Yuanjia. When an ill-advised fight destroys the reputation of a renowned martial arts champion and his family, his difficult path to redemption will bring him face-to-face with the most ferocious fighters in the world.

"An ex-Marine haunted by a tragic past, Tommy Riordan returns home and enlists his father, a recovering alcoholic and his former coach, to train him for an MMA tournament awarding the biggest purse in the history of the sport. Tommy's estranged brother Brendan, a former MMA fighter unable to provide for his family as a public school teacher, also enters the competition. Set on a collision course with each other, the two brothers must finally confront...