The film stars Hwang Jung-min, Yoo Jun-sang, Lee Yo-won, Yoon Je-moon, and Jung Woong-in.

Years later, while running a noodle shop to earn extra money following an accident involving his daughter, Deok-kyu accepts an invitation to join a televised mixed martial arts tournament, Fists of Legend.

Among the contestants are Deok-kyu's old friends Sang-hoon, currently a manager at a large company who lacks in self-respect after getting passed over for a promotion, and Jae-seok, now a good-for-nothing guy who dreams of becoming a somebody.

Filming began on July 15, 2012 at the Shin Joon-sub boxing gym in Namwon, North Jeolla Province,[6][7] and wrapped on November 28, 2012 in Paju.

[8] Actor Yoo Jun-sang injured the cruciate ligament in his left knee while filming and underwent surgery on October 30, 2012.