Jobless, besieged by creditors, and abandoned by his wife, the once silver medalist Tae-shik has sunk to street hustling, becoming a human punching bag. Meanwhile, young Sang-hwan's delinquent ways land him behind bars. Both men look to boxing to turn around lives gone astray, aiming for the amateur title, ultimately pitting them against each other, but more importantly, against themselves.
| Directing | Ryoo Seung-wan | Director |
| Writing | Ryoo Seung-wan | Writer |
| Crew | Jung Doo-hong | Fight Choreographer |
| Production | Syd Lim | Producer |
| Production | Han Jae-duk | Producer |
| Editing | Nam Na-young | Editor |
| Camera | Cho Yong-kyu | Director of Photography |
| Art | Park Elhen | Production Design |
| Production | Kim Dong-joo | Executive Producer |
| Production | Kim Jang-wook | Executive Producer |
| Production | Kuk Su-ran | Line Producer |
| Sound | Bang Jun-seok | Original Music Composer |
| Writing | Jeon Cheol-hong | Screenplay |
| Directing | Lee Jung-hoon | Assistant Director |
| Directing | Han Dong-wook | Assistant Director |
| Crew | Heo Myeong-haeng | Fight Choreographer |
| Art | Lee Mok-won | Props |
| Visual Effects | Jung Do-ahn | Special Effects Supervisor |
| Crew | Ji Jung-hyeon | Stunts |
| Visual Effects | Lee Jeon-hyoung | VFX Supervisor |