明朝成化(huà )年间，朝纲腐败(bài )，奸邪当道。西厂东(dōng )厂(chǎng )为宦官(guān )把(bǎ )持，混(hún )淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰）等(děng )流亡(wáng )剑客挺身而出，接连铲(chǎn )除(chú )东厂数(shù )名奸佞，致令阉贼胆战心惊。适值此(cǐ )时，风头正劲的西厂