明朝成化年间，朝(cháo )纲腐败(bài )，奸邪当道。西厂东厂(chǎng )为宦官把持，混(hún )淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连杰 饰）等流亡剑(jiàn )客挺(tǐng )身(shēn )而出(chū )，接连铲除东厂数名(míng )奸佞，致(zhì )令阉贼胆(dǎn )战心惊。适值此时(shí )，风头正劲的西厂