明朝成化年间，朝(cháo )纲腐败，奸邪当道(dào )。西厂东厂为宦官把持，混(hún )淆(xiáo )黑白，陷害忠(zhōng )良，朝野内外噤若寒蝉(chán )。时有赵(zhào )怀安（李连杰(jié ) 饰）等流亡剑(jiàn )客挺身而出(chū )，接(jiē )连铲除(chú )东厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲(jìn )的西厂