The comedian explores Grampian and the Central Highlands, going behind the region's most iconic sights to see what the tourists miss - and unearth the hidden gems in her home country. She begins her journey in Perthshire at Blair Castle, which has a unique claim to fame as the home of Europe's only private army. From there, Susan travels to Invergordon, where she goes underground to explore an amazing feat of wartime engineering and the home of a world record-breaking echo. In the Cairngorms, the comedian meets a special and charming group of animals - Britain's only wild reindeer herd.