Wu Hu Tu Long plot
The captain of the Flying Dragon Villa has been betrayed and killed by an unknown person. The captain's five sons all had to leave a scar in order to identify them later. Years later, a friend of the captain tells this story to his daughter (Cheng Pei-pei.) and asks her to reunite the five sons so that they can take revenge. Pure coincidence, the five sons are all on their way to the Flying Dragon Villa. Unfortunately, they are no match for their enemies, but luckily Miss Yen has a manual for an invincible kung-fu technique that requires 5 martial artists.