At the end of 1944, a huge amount of banknotes, commonly known as gold yuan coupons, fell from the sky and covered the ancient county town in the deep mountains of western Sichuan. The poor people became wealthy overnight. Various intertwined forces of light and dark made greed, cunning, deception, desire and hope, redemption, national destiny, and justice break out of the cage like trapped beasts. The strange event of falling banknotes from the sky led to countless war advertisements that sprung up in the streets and alleys like mushrooms after rain - Japanese Jintan advertisements. The old man's beard on the advertisement actually hid a kind of war murderous intention of implanted commercial brands. At the same time, the rich helmsmen who did not pick up the banknotes were unwilling to miss the opportunity to make a fortune. They printed counterfeit banknotes by stealing and replacing pillars to deceive the government, but the government gave them as a generous gift of Yin money and ghost money to the blind Japanese soldiers on the battlefield in western Yunnan - a cashier and accountant who was dug out from the dead on the battlefield and vowed to complete the financial task. Wang Huaiyi (played by Nie Yuan), the captain of the banknote search and suppression team, played a cat-and-mouse game with the Japanese bandits, but the mentally retarded Niu Ergua accidentally became an anti-Japanese hero. Jiang Yanyan (played by Huang Shengyi), the assistant captain of the search and suppression team, who was sneaky and erratic all day long, used the triple identities of Kwantung Army spy, Kuomintang agent and Yan'an undercover to escort the banknote search and seizure work. At the critical moment of national crisis, the brothel with rolling in windfall and booming business also turned from a meat grinder battlefield into an anti-Japanese battlefield. The brothel owner, Er Niang, who wanted the government to invest in the expansion of the brothel, finally woke up from the banknote search and suppression incident and led the brothel team into the torrent of the anti-Japanese war.