No dream is too ambitious for Appare Sorrano, a socially awkward inventor residing in a small rural Japanese town during the late 19th century. Fascinated since childhood by steamships capable of connecting people across vast distances, he has learned to construct various machines from scientific texts. His aim is to sail across the sea, beyond the sky, and ultimately to the far side of the moon. Unfortunately, due to a series of events, Appare finds himself stranded at sea on his mini steamship. Floating nearby is Kosame Ishikki, a skilled but cowardly samurai tasked with keeping Appare's eccentric behavior in check. Just as all hope seems lost, a large steamship rescues them and transports them to Los Angeles. With no money or plans, they decide to enter the "Trans-America Wild Race," which gives Appare the chance to build his own automobile and Kosame the opportunity to use the cash prize to return home. However, facing rival racers and unknown challenges in the wilderness, just how far will this adventure take Appare and Kosame?