This film tells the story of the middle Ming Dynasty, when the senior cavalry commander Kuang Tiangan secretly forged "Ming Tongxing Baochao" in order to achieve his rebellion and ordered the army under his jurisdiction to buy all kinds of materials in neighboring provinces. This behavior once caused soaring prices and currency depreciation in Jiangnan, which angered the emperor, who sent out the Six Gates to conduct a thorough investigation, which led to the uncovering of a series of counterfeit treasure banknote cases in Jiangnan.