Hapkido

It is 1934, in Japanese occupied Korea. Angela, Carter and Sammo are sitting and talking in a park when they are approached by a group of Japanese toughs. The leader of the Japanese begins to make unwelcome advances, and Angela tries her best to ignore him. Sammo loses his temper, and a melee ensues. These three have just graduated, learning the art of Hapkido, and they return to China in the hopes of setting up their own school, which they do.
The Japanese, who consider it an inferior martial art, try to run them out of town with some traitorous Chinese, including Pai Ying. Angela, Carter and Sammo don’t want any trouble as it goes against the wishes of their master and his teachings. It’s Sammo who finally loses it after being insulted by some Japanese. This doesn’t go down well, and Sammo becomes a wanted man, having to hide out while Angela and Carter try to reason with The Black Bear Gang without much luck. Finally, the Japanese go too far, and Angela, Carter and Sammo are forced to fight back with devastating results for the Japanese.
(Source: Wikipedia)