Gunma Akagi, a teenager from the countryside, frequently causes a ruckus with his turbocharged tractor, much to the chagrin of his father, aspiring politician Souichirou Akagi, who urges the family to set a good example to ensure his success. One night, while Gunma is driving his tractor on the highway with his best friend Tamotsu Oishi, the two are suddenly overtaken by a speeding car. Gunma interprets this as a cha...