明朝成化年间，朝纲腐败，奸邪当道。西厂(chǎng )东厂为(wéi )宦官把持，混淆黑白，陷害忠良，朝(cháo )野内外(wài )噤若寒蝉。时有赵怀(huái )安（李(lǐ )连杰 饰(shì )）等流亡剑客挺身而出，接连铲(chǎn )除东厂数名奸佞，致令阉贼胆(dǎn )战(zhàn )心惊。适值此时，风(fēng )头正劲(jìn )的西厂