Se ying diu sau

Chien Fu, an orphan adopted by a kung fu school, is overworked as their janitor while being bullied and abused by the kung fu teachers as a walking punching-bag. The school's cook, Ah-Wu, is his only sympathizer. Chien befriends an old beggar, who turns out to be the last master of the Snake-style of kung fu, Pai Cheng-tien. Pai is on the run from the Eagle Claw clan, which is viciously killing off all of the rival Snake-style masters. He is ambushed by Eagle Claw student Su Chen and an assassin masquerading as a Christian missionary, and is injured. After being abused once more, Chien later finds Pai and helps him recover. Pai agrees to give him more lessons, on the condition that he does not call him "sifu" ("master"), since they are friends. The real reason, however, is to keep Chien's connection with him secret from his pursuers.