In his monstrous truck, armed with a 30,000cc engine and 1,000 horsepower, Hanamaru Bakuzo courageously follows the straight and narrow, able to haul everything from toothpicks to 40-ton steel frames without flinching. In spite of this, the yakuza are planning a collision involving Shintaro Kuriyama, the young delivery driver. But Kuriyama's life is saved by a sudden explosion, leading him to question who his savior could be. Fascinated by the explosion, Kuriyama teams up with Bakuzo.