Hoài and Vận fall in love during the war against the French. Vận fought as a guerrilla and Vận ferried guerrillas across the river. When peace comes, Vietnam is divided in two across the Bến Hải River, leaving them separated.
The main character in the film is a real person in history - the hero of the Vietnamese people's army, Cu Chinh Lan, set in the middle of the resistance war against the French (circa 1951) on the battlefield in North Vietnam.
About the heroic struggle of the Vietnamese people against the French colonialists. Commander Dung, who is fighting on the front line, is sent to the rear to organize the supply of ammunition to the forward units.
