虔官昌（Kwai Chang Caine，David Carradine饰）是一名中美混血的孤儿，在外祖父死后被少林寺收留，于白大师（Master Po，Keye Luke饰）指点下，得习高深武功。出山后，官昌在街头巧遇白大师。大师因劝诫横行官差被某皇亲用手枪暗算。官昌一怒之下击毙皇亲，在临终的白大师的指点下，决定流亡美国，找寻下落不明的胞兄。在美国西部，官昌因路见不平卷入了一系列纷争，同时，淸帝派出的杀手也紧随其后……
本片因当时罕见的中国元素，在70年代初的美剧中独树一帜，引起强烈反响。

Hester Murdoch is found naked and nearly beaten to death by four young Hawaiian men on the beach and taken to the hospital. Some of the men didn't want to get involved, fearing they might be blamed, because she was white, but do so anyway. Almost immediately everyone suspects they are to blame. When Hester's politically influential mother Doris finds out what really happened, she fearing a scandal, forces her daughter to blame the men who rescued her, of raping and beating her. It's up to detective Curt Maddox, to find out what really happened, and their Hawaiian lawyer to do the impossible. Convince a white court of law, that they are innocent.