Maureen and Larry head north to the majestic Glamis castle in Scotland - the setting for Shakespeare's Macbeth and the childhood home of the Queen Mother. Maureen discovers the secrets behind the Queen Mother's private apartments as Larry joins the annual Highland Games. Michael is on the trail of an ancient mystery in Wiltshire. Wendy Craig shares her passion for horticulture in her home town of Cookham, revealing the forgotten floral and landscape work of the artist Stanley Spencer. Bill Paterson returns to his childhood home in Glasgow to champion the city's industrial legacy and boards the Waverley, the last sea going steam paddler in the world.