明朝成化年间，朝纲腐(fǔ )败(bài )，奸邪当道。西厂东(dōng )厂为(wéi )宦(huàn )官把(bǎ )持，混淆黑白，陷(xiàn )害忠良，朝野内(nèi )外(wài )噤若寒蝉。时(shí )有赵怀(huái )安（李连杰 饰）等流亡剑客(kè )挺身而出，接连铲除东厂数名奸佞，致令阉(yān )贼胆战心惊。适值此时，风头正劲的西厂