In the late 19th century Japan, the socially-awkward inventor Appare Sorrano dreams big, yearning to traverse the sea and reach the moon using his knack for crafting machines. Fate strands him at sea on a mini steamship alongside the timid samurai Kosame Ishikki, assigned to keep Appare in line. Rescued and transported to Los Angeles, the duo, without a clear plan or funds, opt to enter the thrilling 'Trans-America Wild Race.' With Appare constructing an automobile and Kosame eyeing the cash prize for his journey home, they brace themselves against formidable competitors and treacherous obstacles lurking in the untamed wilderness. How far will this exhilarating journey push the limits of Appare and Kosame's resolve?