The Mach 5 ranks among the fastest and most technologically advanced race cars ever constructed by humans. Fitted with an array of gadgets and a potent engine, it poses a formidable challenge to anyone daring enough to race against it. This remarkable vehicle is driven by Gou Mifune, a teenager aspiring to enter the world of professional racing. Despite this ambition, Gou's father and the Mach 5's creator, Daisuke Mifune, refuses to let his son anywhere near a racetrack. Undeterred, Gou's girlfriend Michi, his younger brother Kurio, and Kurio's monkey sidekick Sanpei become his staunchest supporters as he strives to become the greatest racer of all time. However, Gou quickly discovers that becoming a professional racer is no simple task. From the underhanded schemes of corrupt businessmen to fierce competition from his rival, Racer X, Gou encounters numerous obstacles on the road ahead and has much to prove before he can cross the finish line.