The story in the film is about the love between a man and a woman from the same village, Hoan and Can, who have two children together. But this love affair encountered many difficulties and pressure from family and social customs, forcing Can to leave his hometown and go to the mountains. As for Hoan, she was also prevented by her husband's family because they were afraid of having to redistribute their land. The film shows viewers the relationships and behaviors of Northern farmers in the context of the 1960s.

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.

The film is anchored by a wartime re-encounter between a servant child and a tutor, transformed in the crucible of the spring 1968 Saigon offensive.

A woman volunteers to help the Revolutionaries' trucks hide from bombing raids in Truong Son forests.