Based on a true story, 12-year old Justin Yoder (Frankie Muniz) refuses to let a physical challenge stop him. Trying to find something he can do to feel special, Justin decides to participate in soapbox racing after finding a racer in his neighbor's shed. But after a crash while training, both Justin and his family question if this new sport is worth the risk. Justin’s unrelenting desire to win leads him to discover that perseverance makes him a winner as he prepares for a national soapbox championship race!