Based on a real story, Miracle will take place in 1986 and follows the story of the math prodigy Jun-kyung (PARK Jung-min), who lives in the remote North Gyeongsang Province. Jun-kyung’s commute to school can take five hours as there is not official train stop in his village but he decides to put a stop to that and develops a plan to get a new local train stop built.
LEE Sung-min will play Jun-kyung’s father, a diligent worker who doesn’t communicate well with his son. Yoon-a will play local girl Ra-hee, who recognizes Jun-kyung’s drive and pushes him on. LEE Su-gyeong will play Bo-kyoung, Jun-kyung’s older, supportive sister.