明朝成化年间，朝纲(gāng )腐(fǔ )败，奸邪当(dāng )道。西厂东厂为宦官(guān )把持，混淆黑白，陷(xiàn )害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连杰(jié ) 饰）等流亡剑客挺(tǐng )身(shēn )而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值(zhí )此时，风头正劲(jìn )的西厂