Forced to raise his son Yudong after his ex-wife`s death, Dalong has an injury and only relies on security work to survive. Taken on the role of a father, and the father and son naturally have constant friction until the talented driver Ajun who gave up racing enters Yudong`s life by chance. Ajun becomes a bridge of communication between father and son, but he also has a dark history that he does not want to face. But this time, in order to repair the relationship between father and son, and face the trauma of life, Dalong and Ajun will work together to challenge the rally.