明朝成化年间，朝纲腐败，奸邪当道。西厂东(dōng )厂为宦官(guān )把持，混淆黑白，陷害忠良，朝野内外噤若寒(hán )蝉。时有(yǒu )赵怀(huái )安（李连杰 饰）等(děng )流亡剑(jiàn )客挺(tǐng )身(shēn )而出，接连铲除东厂数名奸佞，致令阉贼胆(dǎn )战心(xīn )惊。适值此时，风头正(zhèng )劲的西厂