明朝成化年间，朝纲腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混(hún )淆黑白，陷害忠良，朝野内外噤若寒蝉(chán )。时有赵怀(huái )安（李连(lián )杰 饰）等流(liú )亡(wáng )剑客挺身而出，接连铲(chǎn )除(chú )东厂数名奸佞，致令阉贼胆战心惊(jīng )。适值此(cǐ )时，风(fēng )头正劲的西厂