An international team of volcanologists draw parallels between the volcanoes on Earth and those on other planets, and reveal how they are not just a destructive force but essential to the formation of atmospheres and even life itself.

Ben Fogle travels round the world to visit people who have given up the rat race.

Deep in Alaska, the primal way lives on. Fight the freeze, brave the wild, hold on to your sanity. And winter is no wonderland when temperatures plummet far below zero. This series follows the drama and hardships experienced by Alaskan households in different corners of this merciless territory as they battle to survive, thrive, and live life on their own terms.