Forced by her father into keeping a doll that she knows is filled with drugs, Mi-yeon secretly goes to the police for aid. She soon requires their protection as the drug dealers learn the location of their missing stash.
Park, a bar owner, is forced into paying extortion money to the local gangsters. When Yong-cheol, a customer, sees this, he is outraged and tries to beat up the gangsters, but he is overwhelmed by their numbers. The gangsters cut off Yong-cheol's leg to teach him a lesson. Park and a young boy assist Yong-cheol in forging a new leg out of iron to use as a weapon to defeat the gangsters.
After exacting revenge on the people who killed his father for his involvement with the 1940's independence movement, Park Dal visits his father's friend, Reverand Hwang, and becomes convinced that he should carry on in his father's place.
In Manchuria during the 1940's, a karate master named Sazaki and hapkido champion Wang make plans to rob the Korean Independence Army of its funds. However, unknown to them, the money is guarded by one Mr Lee--a grand master of taekwondo.
Yong-cheol and Su-na help Hun to take revenge on the men who killed his parents, but anytime they kill one of the murderers, they hear a ghostly, melancholy harmonica.
