Synopsis

In the quiet hours of a Japanese dawn, a convoy of black three-wheeled vehicles approaches a pagoda known as Cupola Castle. Agile figures in dark attire, equipped with advanced technology, infiltrate the structure and discreetly plant a small explosive within a suit of armor. As the Fujiyama Grand Prix unfolds, Racer X closes in on Speed, who holds the lead during the thirtieth lap. Unbeknownst to Speed, Racer X is his estranged older brother, Rex, who had departed home years prior. Racer X r