明朝成化年间，朝(cháo )纲(gāng )腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝野(yě )内外噤(jìn )若寒蝉。时有赵(zhào )怀(huái )安（李连杰 饰(shì )）等(děng )流亡(wáng )剑(jiàn )客挺身而出，接(jiē )连铲除(chú )东厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂