After the Tet Offensive of 1968, the Command of Group 559 assigned Transport Stations 9 and 12 to urgently recruit young female volunteers for training as truck drivers to supply the battlefield. The story follows four women—Chau, Han, Sa, and Thuong—who drive from Ben Thuy to the Western Truong Son. During their missions, the sacrifices of Han, Thuong, Sa, and Chau’s brother leave her with deep sorrow. Yet, with determination and strength, Chau continues to the battlefield to fulfill her duty.