Hard man Ricky is incarcerated in a futuristic prison where ultra-violence is his only means of survival in the corrupt, sadistic system. He must battle his way quite literally ‘through’ the feared ‘gang of four’, and undergo multiple tortures before facing the governor in one of the goriest climaxes ever seen.

So goes to the U.S. to open a martial arts school. Around this time, many Chinese people were sold off to U.S. railroad companies, and were brutally treated by the Americans under the harsh working conditions. Thus, the American workers’ hatred towards the Chinese immigrants is high. As a result, So gets into trouble with the Americans and the mob, and calls Master Wong for help.