On the eve of Japan's defeat, many laborers were captured from China and transported to the mainland, including prisoners of war from the National Army and the Eighth Route Army. They suffered inhuman torture in Japan and were immediately executed if they escaped. Xiao Hansheng (played by Pei Xiubin) and Xia Mingyuan (played by Li Guangjie) knew that they were currently repairing important fortifications, so they secretly told their subordinates to be passive and look for opportunities to escape. The Kuomintang and Communist prisoners of war were reluctant at first, but Xiao Hansheng's sense of justice gave rise to strong national sentiments among all the laborers, and everyone united closely. In preparation for the armed uprising, Xiao Hansheng asked the laborers to secretly prepare explosives during their labor, and tried to find a way for Korean laborer Li Jicheng (played by Jia Hongwei) to escape from the labor camp, and instructed him to prepare for the periphery. The director of the labor camp, Okada (played by Koji Yano), received an order to kill all the laborers after the fortifications were completed. Xiao Hansheng felt that the moment of life and death had come...