At the turn of the century, the Chaoshan region suffers a famine and people flock to the temples toseek help from Buddha. Ahping, a local girl, accompanies her mother to fufill their promise toBuddha, but a local tyrant called Iron Palm takes a fancy to her and abducts her to a cave. Passingby, the martial arts master Wu and his son, jiatai, spring to her rescue, but Wu is killed by IronPalm. With his last breath, he urges Jiatai to find performers from Fanglan, telling him that hewon't beat Iron Palm until he masters the kungfu of the invincible legs. As he blames himself forhis boldness he finds Fengni in danger and with all his strength he saves her. The two fall in love.
From her he learns that her father is the master of the invicible legs technique.
Jiatai asks Fengni's father to teach him, but unexpectedly, Iron Palm chases him and a fight starts.
Fengin's father is killed. After a narrow escape, Jiatai and Fengni hide deep in a forest where they steadfastly practice the invicible legs technique.
At last, they kill the evil Iron Palm.