After many years away from the Octagon, former MMA champion Patton James is forced to return to the big leagues to avenge Mellon's brother. Reunited with his trainer Sammy, who once made him a legend, he sets out for one last fight—a brutal clash with the reigning champion Xavier Grau, who is ready to destroy Stone in front of the eyes of the whole world. Driven to the limit, Patton realizes that what is at stake is not only his life, but his legacy.