明朝成化年间，朝纲腐败，奸(jiān )邪当道(dào )。西厂东厂为(wéi )宦官把持，混淆黑白，陷害忠良，朝(cháo )野(yě )内外噤若寒蝉。时有赵怀安（李连杰 饰）等(děng )流亡剑客挺(tǐng )身(shēn )而出，接连铲除东(dōng )厂(chǎng )数名奸佞，致令阉贼胆(dǎn )战心惊。适(shì )值此时，风头正劲(jìn )的西厂(chǎng )