明朝成化年间，朝纲腐败，奸邪当道(dào )。西(xī )厂东厂为宦官把(bǎ )持，混淆(xiáo )黑白，陷害(hài )忠良，朝(cháo )野内外噤若寒(hán )蝉。时有赵怀安（李连(lián )杰(jié ) 饰）等流亡剑客挺(tǐng )身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时(shí )，风头正劲的西厂(chǎng )