明朝成化年间，朝纲腐败，奸邪(xié )当道。西厂东厂为宦官(guān )把持，混淆黑白，陷害忠良，朝野内外(wài )噤若寒蝉。时有赵(zhào )怀(huái )安(ān )（李连杰(jié ) 饰）等(děng )流亡剑客挺(tǐng )身而出，接连铲除东(dōng )厂(chǎng )数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂