明朝成化年(nián )间，朝纲腐败，奸邪当道。西厂东(dōng )厂(chǎng )为宦官把持(chí )，混淆黑白，陷害忠良，朝(cháo )野内外(wài )噤(jìn )若寒蝉(chán )。时(shí )有赵怀安（李(lǐ )连杰 饰）等流亡(wáng )剑客挺身而出，接连铲除东厂数名奸佞，致令(lìng )阉(yān )贼胆战心惊。适(shì )值此时，风头正劲的西厂