The tale begins when the "yankee," a skilled mechanic in a 19th century New England arms factory, is struck on the head during a quarrel, and awakens to find himself being taken as a prisoner to the Camelot of 528 A. D. With his 19th century know-how, the "yankee" sets out to modernize the Kingdom, but is opposed by a jealous court magician. Clever enough, but buried beneath Twain's humor is a serious social satire.