The film tells the story of the upcoming Battle of Huaihai, where the villagers are preparing supplies and food for departure. Zhu Yonglan, the female militia captain, persuades the village carpenter, Bao Liang, to join the support team, but Bao Liang, worried about his soon-to-be-married wife, refuses to join. However, his fiancée joins the battlefield hospital and sets off with the troops. As a result, Bao Liang volunteers to join the support army, searching for his fiancée while aiding in the frontline battle.Bao Liang, who has just joined the team, struggles to adapt to the harsh conditions and environment, and he is even captured by Nationalist fleeing soldiers. The transport team leader, Bao Ping'an, worries that Bao Liang will hold the team back and encourages him to go home, but Bao Liang insists on staying. After enduring difficult trials and hardships, Bao Liang fully integrates into the revolutionary team and establishes deep bonds with his comrades, making significant contributions to the revolution.