Fiona Bruce and the Antiques Roadshow team make a return visit to the Black Country Living Museum in the West Midlands on one of the hottest days of the year. Susan Rumfitt discovers some jewels fit for a princess, while Hilary Kay explores local motor racing history at the Sunbeam Motor Car Company. A surrealist picture appeals to Rupert Maas, but is it the real deal? And the show takes a surprising turn to the Wild West with one of the rarest guns Bill Harriman has ever seen - a Colt 37 revolver!