Once considered the vulgar venture of an upstart American, Selfridge & Co. is now the toast of London, about to celebrate its fifth anniversary. The store's staff plans a surprise for Harry, and unexpected guests show up. Meanwhile, the latest sensation is a new nightclub, run by libertine Delphine Day, who is a new friend of Harry's wife, Rose. Are the two institutions-Selfridges and Delphine'-destined to cross paths? In other action, Lady Mae's husband, Lord Loxley, is back in her life again. Rose spots a ghostly but familiar face at Delphine's. And Agnes gets a huge promotion but makes a bitter enemy. On the larger stage, the Archduke of Austria is assassinated, touching off a crisis on the Continent.
