明朝成化年间，朝纲腐败(bài )，奸邪当道。西(xī )厂东(dōng )厂为宦(huàn )官把持，混淆黑白，陷害忠(zhōng )良，朝(cháo )野内外噤若寒蝉。时有(yǒu )赵怀安（李(lǐ )连杰(jié ) 饰）等流(liú )亡剑客(kè )挺身而出，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