In Tianjin during the Republic of China, industrialist Shen Tingyuan founded a factory to produce military supplies to support the front line. Female doctor Su Qinghe rescued the injured Shen Tingyuan during an air raid. Shen Tingyuan appreciated Su Qinghe's bravery and invited her to open a clinic near the factory to treat workers. Su Qinghe discovered that the factory's military supplies had been embezzled by corrupt officials. She and Shen Tingyuan worked together to collect evidence to expose the crimes of corrupt officials. The relationship between the two warmed up during their cooperation, but they were retaliated by corrupt officials. In the end, Shen Tingyuan and Su Qinghe successfully reported corrupt officials, and the factory resumed normal production, providing more supplies to the front line.
