明朝成(chéng )化年(nián )间，朝纲腐败，奸邪(xié )当道。西厂东(dōng )厂(chǎng )为宦官把持，混淆黑白，陷害忠良，朝野内外噤若寒蝉(chán )。时有赵怀(huái )安（李连(lián )杰 饰）等流亡剑客(kè )挺(tǐng )身而出，接连铲(chǎn )除东厂数名奸佞，致令阉(yān )贼(zéi )胆战心惊。适值此时，风头正劲(jìn )的西厂