明朝成化年间，朝纲(gāng )腐败(bài )，奸邪当(dāng )道。西厂(chǎng )东厂为宦官把持，混淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李连(lián )杰 饰(shì )）等流亡(wáng )剑客挺身而出(chū )，接连铲(chǎn )除东(dōng )厂数名奸佞，致令阉贼胆战心(xīn )惊。适值此时，风头正劲的西厂(chǎng )