Alex MacBuff can't afford to keep his beloved Castle Carra, and an American millionaire has made him an offer he can't refuse. The castle is shipped all the way to Texas, but its ghostly inhabitants, including Krok the Viking warrior, and a hell-hound called Cyril, follow their home across the Atlantic. How can Alex stop them from haunting Hiram and also save the millionaire's daughter from an evil ransom plot?