明朝成化年间，朝纲腐败，奸(jiān )邪当道(dào )。西厂(chǎng )东厂为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤若寒蝉(chán )。时(shí )有赵(zhào )怀安（李连杰 饰）等流亡剑客挺身而出，接(jiē )连铲除东厂数名奸佞，致令阉贼胆战心(xīn )惊。适值此时，风头(tóu )正劲的西厂(chǎng )