Bob Mitchell, an English citizen and world-traveling circus acrobat, has worked in America so long he has lost his accent, but he is drafted into the British Army at the outbreak of World War II, but is injured and suffers from amnesia, and can't be identified. Since he speaks with an American accent, he is transferred from the American sector in post-war Berlin to a hospital in the United States. There, he tries to recall his past but the only clue is a string of five bank notes from five European countries, each bearing the signature of a different girl. Lesley, the attractive editor of an American magazine, conceives the circulation-boosting idea of sponsoring his trip back to the five countries in order to re-discover his past. The Rome, Vienna, Berlin, Paris and London segments of each film was handled by a different director and crew in each city, as was the writers for each segment.