明朝成(chéng )化年间，朝纲腐败，奸邪当道。西厂(chǎng )东(dōng )厂为宦(huàn )官把持，混淆黑白，陷害忠(zhōng )良，朝野(yě )内外噤(jìn )若寒蝉(chán )。时有赵怀安（李连杰 饰）等流亡剑客挺身(shēn )而出，接连铲除东厂数名奸佞，致令阉(yān )贼胆战(zhàn )心惊。适值(zhí )此时(shí )，风头正劲的西厂