明朝成化年间，朝纲(gāng )腐败(bài )，奸(jiān )邪当道。西厂(chǎng )东厂为宦(huàn )官把持，混淆黑白，陷(xiàn )害(hài )忠(zhōng )良，朝野(yě )内(nèi )外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰）等(děng )流亡剑(jiàn )客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时(shí )，风头正劲的西厂