Genius racer Lin Fan accidentally stumbles into an underground racing circuit while helping a passenger catch his wife cheating. Driving a taxi, he crushes a field of supercars to claim the championship and activates the Racing King System. Lin Fan then acquires a racing team and fights his way through one competition after another, winning the national championship and presenting evidence to clear his name and bring his enemies to justice. Next, he represents the Dragon Kingdom in the global championship, defeating racers from Sakura Country and the cheating five-time champion from Eagle Country to become the world's greatest racing champion. In the end, he receives simultaneous love confessions from two sisters.