明朝成化年间，朝纲(gāng )腐败，奸(jiān )邪(xié )当道。西(xī )厂东厂为宦官把持，混淆(xiáo )黑白，陷害忠(zhōng )良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连杰 饰）等流(liú )亡剑客挺身而出，接连铲除东厂数名奸佞(nìng )，致令阉贼胆战心惊。适值此时，风头正(zhèng )劲的西厂(chǎng )