明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂东(dōng )厂为宦官(guān )把持，混淆黑白，陷害忠良，朝野内外噤若寒(hán )蝉(chán )。时有赵(zhào )怀安（李连杰(jié ) 饰）等流亡剑客挺身而出，接连(lián )铲除东厂数名奸佞，致令阉贼胆(dǎn )战心惊。适值此时，风头正(zhèng )劲的西(xī )厂(chǎng )