明朝成化年间，朝纲腐败，奸邪当道。西厂东厂(chǎng )为宦官把持，混淆黑白，陷(xiàn )害忠良，朝(cháo )野内外(wài )噤若寒(hán )蝉。时(shí )有(yǒu )赵(zhào )怀(huái )安（李连杰 饰）等流亡(wáng )剑客挺身而出(chū )，接连铲除东厂数名奸佞，致令阉贼胆战(zhàn )心惊。适值(zhí )此时，风头正劲的西厂(chǎng )