Long Quan plot
Young Kung Fu fighter Tang How-Yuen (Jackie Chan) is on the trail of his master's killer. He travels with the wife and daughter of the murdered master, but when they find the man, it turns out that he deeply regrets his actions and the widow forgives him. However, the evil warlord Wei learns of Tang's incredible martial arts techniques and tries to convince him to follow him. It becomes almost impossible to refuse when the widow falls ill and only the Wei family knows how to cure her.