明朝成化年间，朝纲腐败，奸邪当(dāng )道(dào )。西(xī )厂(chǎng )东厂为宦官(guān )把持，混(hún )淆黑白，陷害忠良，朝野内外噤(jìn )若寒蝉。时有赵怀安（李连杰 饰）等流亡剑客挺(tǐng )身而出，接连铲除东厂数名(míng )奸(jiān )佞，致令阉(yān )贼(zéi )胆战心(xīn )惊。适值此时，风头正劲的西厂(chǎng )