1930 Manchuria: Seong-Jin, a member of Korean independence army, is arrested and tortured by Suzuki. Seong-Jin’s tells his colleague Min-Wuk the location of funds. Min-Wuk puts the money into the stomach of a dead hog and floats it down the river. Soon, Min-Wuk is captured by Mokosan, a gangster from Peking and Ye-Ji, a barmaid. While Suzuki arrests all of them and kills Mokosan, Min-Wuk, succeeds in arresting Suzuki and escaping, as he continues his journey along the river to deliver the funds.

A coalition of anti-narcotics brigades from many countries make a daring attempt to halt the flow of opium and heroin from the part of Southeast Asia, known as the Golden Triangle. The major syndicate operating in the area is led by Big Boss Norton, who is the target of their raid.