This movie may have been the foundation for Chang Cheh's BLOOD BROTHERS. The story is about three rebel swordsmen: Chin Liang (Lo Lieh), Hsiang Tu Pu (Frankie Wei Hung), Ma Ching Ping (Tien Feng), who swear an oath to be sworn brothers through thick and thin. One of the sworn brothers, Ma Ching Ping, takes a job as Commander of the Tartar forces. He later summons his two brothers, Tu Pu and Chin Liang to join him. Little do the two know or imagine that their sworn brother, Ma Ching Ping, is now supposed to kill them on behalf of a Tartar Prince! Like Blood Brothers, a pretty woman (played by Ling Ling) is the fall of one brother (Wei Hung) and the object of another brother's eye (Tien Feng). Chin Liang must avenge the death of his brother, Tu Pu, but it'll be hard. After several failed attempts to kill Ma Ching Ping, the injured Chin Liang goes into hiding to recuperate and train for his showdown with Brother Ma. Chin Liang's training includes burning his hands and punching the hell out of tree so that he can master the iron palm. He also burns his tongue and disfigures his face so that he can enter Ma Ching Ping's place without anybody recognizing him. Will all the self-torturing to himself pay off for Chin Liang? I thought it was unnecessary, but I guess the end justified the means.