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.
Han Wu-song, an antique collector, gets killed while appraising a bronze horse rider statue which trader Wang Dae-in has stolen from a tomb. Dae-in dies on the scene and Wu-song leaves the killer's name on the cave wall before he dies. Dae-in's son Wang Gak thinks Wu-Song killed his father and fights with his son Jung-pa. Trader Kwan and her daughter Mi-ryung stop the fight. Jung-pa and Mi-ryung's love is disturbed by Ju-yang. Gak and Jung-pa chase him to find Wu-song's body with Ju-yang's name on the wall but Mi-ryung appeals them not to kill...
