In the winter of 1946, Tian Ge Niang was arranging a wedding for her daughter. The groom Dabao accidentally killed the bride. Dabao's mother felt guilty about Tian Ge Niang and betrothed her daughter Erbao to Tian Ge Niang's son Tian Ge. Erbao refused and ran away from the marriage. Sanbao replaced his sister and married Tian Ge. Li Sen, the company commander of the Eighth Route Army, went to Dabao's mother's home to recuperate. It turned out that he was Tian Ge's long-lost twin brother. Li Sen's mother Fang Chen came to visit Li Sen and found Tian Ge. Facing Tian Ge's biological mother, Tian Ge Niang was in pain. Fang Chen was grateful to Tian Ge Niang for raising Tian Ge. She did not recognize Tian Ge and left with pain. In a battle, Tian Ge and Fang Chen met again. Tian Ge mistakenly thought that Fang Chen wanted to snatch him away. He was very resistant to Fang Chen. Fang Chen was in great pain. At this time, the news of Li Sen's death came again. After several struggles, Tian Ge Niang secretly left Tian Ge and returned to the village alone. Fang Chen knew the pain of Tian Ge Niang and sent Tian Ge back. In order to obtain the enemy's battle plan, Li Sen pretended to be Tian Gei and infiltrated the enemy, but was unfortunately discovered. At the critical moment, Niang understood the righteousness of the matter and reluctantly replaced Li Sen with Tian Gei, so that the battle plan was safely delivered, but Tian Gei sacrificed his young life.