The movie tells about an autistic young man, Cho-won, who finds release only in running. As a child, Cho-won would throw tantrums, bite himself, and would refuse to communicate with anyone. His mother never gave up on him and was determined to prove to the world that her child can be normal. As Cho-won gets older he begins to find a passion for running and his mother is right there to encourage him. The movie further explores and shows the deep love and genuine purity that shows through Cho-won.