明朝成化年间，朝纲(gāng )腐败，奸邪当道(dào )。西厂东厂为宦官把持，混(hún )淆黑白，陷害(hài )忠(zhōng )良，朝野内外噤(jìn )若寒(hán )蝉。时(shí )有赵怀(huái )安（李连杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂(chǎng )数名奸佞，致令阉(yān )贼(zéi )胆战心惊。适值此时(shí )，风头正劲的西厂