Abandoned by his father at age 3 and universally written off as a worthless no-hoper, Leo secretly grows into an undefeated, world-class top racing god. He deliberately lays low working as an ordinary delivery boy, savoring quiet, peaceful days with his mom and little sister — the only two people who never once gave up searching for him, and never wavered in their unshakable belief in him even as the rest of the world wrote him off entirely.