How fast can a human-powered bicycle go? The annual World Human Powered Speed Challenge attracts leading engineers from around the world to find out. Last year's record was 139.45km/h. In the fall of 2016, a Japanese team competed for the first time, spending 10 months to develop their entry. Encountering unexpected accidents and obstacles, they find themselves in a tight spot. But through undaunted perseverance, the Japanese engineers and rider ultimately achieve a nearly miraculous result! Join Chihara Junior and the Supreme Skills! team as they document this grand adventure in the American desert.