During the period of cooperation between the Kuomintang and the Communist Party, in order to fight against the Japanese invaders, the New Fourth Army adhered to the policy of unity and joint resistance. However, the Kuomintang army insisted on going its own way and oppressed the people, causing the loss of many towns. This work tells the story of a county under the control of the Japanese invaders. Two New Fourth Army soldiers, brothers Xiao Jinhu and Xiao Yinhu, left the army without authorization. When they went home to visit their old mother, they encountered two traitors who oppressed their old mother and sister. They beat one traitor to death and returned to the army. According to the organization, they left the team without authorization, which violated organizational discipline and revoked their honorary title of "Sharp Blade" class. Xiao Jinhu was dismissed from his position as squad leader. In the face of a powerful enemy, let them accept tasks such as committing crimes and meritorious service, blowing up the Japanese army's arsenal, holding on to their positions, and destroying the Japanese army's bacterial research laboratory.
