The film tells the story of the anti-Japanese war, the CCP's Jiaodong special committee for the gold resources of Zhaoyuan, and the Japanese army and traitors have fought a desperate struggle. A large number of Jiaodong children paid the price of blood and life, and the gold was continuously transported to Yan'an, where the CPC Central Committee is located.

Wu Xueying comes back with her doctorate. Once at home, she hears of her brother's suicide and Mad Lu takes away her file case. The police believes that her brother was murdered.