Chih Chen

A tribe of snake-men are out to wreak havoc on a Miao minority group. Old Chang is not only the witch-doctor of the Miao people, but he and his two sons also help defend them against the intruders.

Allison Wong gets abducted by a gang of drug smugglers with a nasty sideline business involving white slavery and prostitution. Interpol agent Bill Eaton, honest worker Chen, and Allison's brother join forces to take out the nefarious crime syndicate.

In the last "Big Boss" (AKA "Fists of Fury"), Cheng Chao-On was arrested after killing Hsiao Mi, "The Big Boss." In this unofficial sequel, his brother, Cheng Chao-Chun, visits his brother in Thailand, finds a job at the same ice factory that his brother worked at and avenges the death of their father.