A mother and father who are very open and frank with their children about sex find their relationship in turmoil when an old love enters the picture.

During the Japanese colonial era, roughly 400 Korean people, who were forced onto Battleship Island 'Hashima Island' to mine for coal, attempt to escape.

A high school girl, Man-bok, who has to walk for four hours every day back and forth between home and her school due to the congenital motion sickness disorder, happens to begin her training as a speed walking athlete unexpectedly. Through the cooperative training with her friend Soo-ji, whom she meets in the school track and field team, Man-bok discovers her path of life in this heartwarming and touching story.

Shortly after the Korean war, a father and a son are wandering through the country and make a stop in a remote village, where strange and dangerous happenings occur.