A fictional film based on a true story. Set in the 1980s, it tells the story of a math genius high school student named "Jun Kyung" (Park Jung Min) who lives with his sister "Bo Kyung" in a rural area in North Gyeongsang Province where even roads are hard to find. With the help of his girlfriend "Ra Hee" (Im Yoon-ah), Jun Kyung works hard with his sister and the people in the village to build a simple train station. Lee Sung-min plays the role of Jun Kyung's father.