Teenage Jang Ji-gu (SEO Young-Joo) takes care of his ill grandfather while hanging out with other troubled kids. Abandoned by his parents at an early age, he suffers multiple run-ins with the law and is eventually sent to a detention center for juvenile offenders. One day, Ji-gu is surprised to learn that his long-forgotten mother (LEE Jung-Hyun) has unexpectedly come back for him. Discovering that his mother had him at a very young age and gave him up soon after his birth, Ji-gu struggles with repairing their relationship… but as this charming new blockbuster proves – with love, anything is possible.