Top Dogs: Adventures in War, Sea and Ice Episode Rating Graph

Three iconic adventurers - newsman John Simpson, polar explorer Ranulph Fiennes and solo yachtsman Robin Knox-Johnston - go on a newsgathering trip to war-torn Afghanistan, attempt to sail around the most notorious of all maritime landmarks, Cape Horn, situated at the southernmost tip of South America, and man-haul sledges across the frozen sea ice of the Canadian Arctic.