明朝成化年间，朝纲(gāng )腐败(bài )，奸邪当(dāng )道。西(xī )厂东厂为宦官把持，混淆(xiáo )黑(hēi )白，陷害忠良，朝(cháo )野内外噤若寒蝉。时有赵怀(huái )安（李连杰 饰）等流亡剑客挺身而出(chū )，接连铲除东厂数名奸佞，致令阉贼胆(dǎn )战心惊。适值此时(shí )，风头正劲(jìn )的西厂