Вонг Хан пытается прояснить загадочные обстоятельства смерти своего брата. Когда он узнает, что брат был замешан в торговле опиумом, а полиция отказывается ему помочь, Вонг в одиночку выходит на тропу войны с наркоторговцами.
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.
Yong-cheol, a gangster living in the 1930's, gains the reputation of having amazing fighting skills. However, he decides to give up his lucrative but dangerous calling for his girlfriend. He agrees to do one more job for his boss, but during the robbery, he winds up killing his girlfriend's brother.
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.
