In 1939, in the transition zone from the Jizhong Plain to the Taihang Mountains, the people of Fenglingdu were out of food and had no choice but to eat anything. Several young college students who came from Peking to Hebei to participate in the war of resistance and build an arsenal crossed the Japanese blockade under the escort of the Eighth Route Army District Squad, but were sniped by the Japanese army and the district squad was almost wiped out. In order to successfully establish a secret small arsenal, manufacture explosives and mines, and support the Eighth Route Army in the war of resistance, the district squad, which was rebuilt step by step, was tempered in the flames of war and grew up in the face of life and death decisions. They were indomitable and brave, using wisdom and blood to resist the Japanese invaders, support the war of resistance, and protect the people.