Lucy Carmichael (Lucille Ball), an American secretary, arrives in London to claim a free day trip that she won in a dog food jingle contest. She is expecting a luxury limousine tour of the city, but instead is greeted by a tour guide named Tony (Anthony Newley) who escorts her in a motorcycle with an open sidecar. Their initial stop, for punting on the River Thames in an inflatable raft, ends disastrously when they collide with a rowing team and sink beneath the waters. Tony then takes Lucy to the heart of London's shopping district, where she models the latest mod fashions in a musical number based on the Phil Spector tune Lucy in London. Lucy is then escorted to Madame Tussaud’s wax museum, where she is frightened by a curator (Wilfred Hyde-White) whom she mistakes for a haunted wax statue that comes to life. She then visits a British manor, where she plays Kate opposite actor Peter Wyngarde in a scene from the William Shakespeare comedy The Taming of the Shrew. Lucy and Tony return to the Thames, where they sing Pop Goes the Weasel as a duet. The Dave Clark Five turns up to sing London Bridge is Falling Down. Lucy and Tony then arrive at an empty theater, where Tony dons a tuxedo and sings a medley of songs from the Leslie Bricusse-Anthony Newley show Stop the World, I Want to Get Off. Lucy follows him with a mime act and a song where she shows her appreciation of her London adventures. (thetvdb.com)