明朝成化年间，朝纲腐败，奸(jiān )邪(xié )当道。西(xī )厂东厂为宦官把持，混淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀(huái )安（李连杰 饰）等(děng )流亡剑(jiàn )客(kè )挺(tǐng )身而出，接连铲除东厂数名(míng )奸佞，致(zhì )令(lìng )阉贼胆战心惊。适值此时(shí )，风头正劲的西厂