This Corey Yuen Kuei-directed actioner stars Yuen Biao as a gifted young prosecution lawyer. Disillusioned with a system that allows crime lords to buy their way out of trouble, Yuen becomes a vigilante and starts to hunt down the bad guys. On his trail is tough Gweilo cop Cynthia Rothrock, determined that nobody should take the law into their own hands.

The plot for this movie is fairly formulaic, but it remains one of the best HK action films of the 80s. The reasons for this are some strong performances from the leads (Yuen has often been unfairly dismissed as a poor relation of Jackie Chan and Sammo Hung, while Rothrock must have been sick of playing the same part over and over) and some electric action sequences. The most memorable scenes are; an attempt on Yuen's life by black American karate expert Peter "Sugarfoot" Cunningham; a bout between Cynthia Rothrock and her fellow US Forms champion Karen Shepherd; the inevitable showdown between Yuen and Rothrock; and the final confrontation between Yuen, Rothrock and the mysterious villain.