明朝成化年间，朝纲腐(fǔ )败(bài )，奸邪当(dāng )道(dào )。西厂(chǎng )东厂为宦官把持，混淆(xiáo )黑(hēi )白，陷害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李(lǐ )连杰 饰）等(děng )流亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆(dǎn )战心惊(jīng )。适值此时，风头(tóu )正劲的西(xī )厂