Austin Wai Tin-Chi plays a young martial arts master who is about to inherit the leadership of the Dragon Gang Triad society, until a letter is delivered by his own siblings which suggests he might really be a Mongol, and have killed to hide the truth. The seal on the letter is evidently credible enough to make the elders wary, and he is kicked out of the gang. He sets off to discover the truth about his own origins, and to prove his loyalty to the Han.