Martin Clunes encounters giant snails and helps rescue endangered sea turtles in equatorial Sao Tome and Principe, which is also known as the African Galapagos, learns of a dark slavery past, enjoys some village theatre and samples a local palm gin.

Martin Clunes takes on the mountains of Madeira as a rally car navigator and patrols the waters of the Azores on the look-out for sperm whales.

Martin Clunes explores the windswept Faroe Islands and their Viking heritage, then ends in spectacular Greenland with its Inuit traditions, calving glaciers and vast ice sheet.