During the Anti Japanese War (Second Sino-Japanese War), Chen fool joined the Eighth Route Army in order to earn money and marry his wife, and was assigned to Class Two of the Third Company. He is well known as an idiot, is totally incompetent, can't distinguish left or right, He fails to learn how to shoot, and fails to retreat jeopardizing the risk of death for his comrade, and foiling his squad leader plan. He is deemed useless and is the laughing stock of the army. His only advantage is his strong physique and a big stature, thereby he is only assigned a cooking position in the army and only do trite errands suitable for his physique and strength. One eventful day when Chen fool goes to the battlefield to deliver food and meets the Imperial Japanese army, where he is asked to help his comrades fight the devil. An event that will earn him the title, "the brave bombardier", a revolutionary hero, and gain the deserved respect from his comrades and leader.