Ko Lin kills the brother of Hung Lau, an outlaw. Hung Lau, in turn, kills Ko Lin's entire family, and goes into hiding to learn and master the "natural fist", the most deadly form of kung-fu. The final battle between the two sworn enemies is a dynamic duel to the death.
| Directing | Godfrey Ho | Director |
| Directing | Kim Jung-yong | Director |
| Production | Kim Yong-deok | Producer |
| Crew | Jeong Il-Man | Cinematography |
| Lighting | Gang Gwang-hui | Lighting Coordinator |
| Editing | Hyeon Dong-chun | Editor |
| Sound | Lee Cheol-Hyeok | Music |
| Art | Cho Kyung-hwan | Art Direction |
| Art | Lee Yue-ho | Property Master |
| Costume & Make-Up | Lee Hae-yoon | Costume Designer |
| Costume & Make-Up | Song Il-keun | Makeup Artist |
| Directing | Hong Hui-gyun | Assistant Director |
| Directing | Hong Seong-Bae | Assistant Director |
| Editing | Vincent Leung Wing-Chan | Editor |
| Crew | Dallie Yeung Doi-Lee | Presenter |
| Crew | Kim Chul-Suk | Special Effects |
| Sound | Kim Sung-chan | Sound Recordist |
| Sound | Son Hyo-sin | Sound Recordist |
| Writing | Youn Suk-Hoon | Writer |