One Sunday, a penniless unmarried young South Korean couple meet, as they do every Sunday; while the pregnant young woman believes they are not ready to bring a child into the world, the young man decides to go visit his friends to borrow money for delivery.
A Korean family is separated during the Japanese colonial period and end up in different parts of Asia, and on different sides of the Korean Civil War.
The film based on the true story of Kim Gwang-seon, a mineworker who survived a collapse of Gubong Mine in August 22, 1967. The story focuses on the importance of saving a life, and the survivors' will to live.