After the "September 18th Incident", the Kuomintang retreated from North China, and senior Kuomintang officer Jin Ge risked his life to return to Dong 'an City, trying to take his mother and his new wife Liu Wenting away. However, the Japanese army has entered the city, Liu Wenting was forced to commit suicide, and Brother Jin was arrested. The underground workers of our party rescued Jin Ge in the hope that he could go to the base area and use his military knowledge to fight against Japan with the Eighth Route Army. However, Brother Jin was skeptical about the Eighth Route Army's combat capability, and he chose to stay alone near Dong 'an City to kill the devils. By chance, Brother Jin got to know Dai Jinhua, the captain of our anti-Japanese guerrillas behind enemy lines, and together they repelled the devils. From the initial mutual contempt to a bloody battle together, Brother Jin saw the real anti-Japanese spirit from Dai Jinhua. They became anti-Japanese armed forces active behind enemy lines, which greatly contained Kamei's military strength. During the period of 1945, the Japanese army was losing ground on various battlefields. Kamei wants to implement the "Dead Sea" plan in Dong 'an City, and the lives of people in the city are at stake. Brother Jin and Jinhua led the team members to sneak into Dong 'an City, and finally successfully stopped the "Dead Sea" plan, and jointly ushered in the dawn of victory in the Anti-Japanese War.