Dublado e Legendado no OverFlix. Mr. Armstrong’s racing stable is preparing to send one of its top horses to run in Paris's Maisons Lafitte, when the thoroughbred is unexpectedly injured. Its replacement is Dunderhead, lesser fancied, but favourite of jockey and stable lad, Albert. Meanwhile, two crooked stable hands plan to use the cross channel trip to smuggle forged banknotes.