Although high mountain ranges occupy only a small part of the Earth, they are crucial to life on the planet. As the “water towers of the world,” they supply over two-thirds of global freshwater resources and provide sanctuary for endangered species. This series journeys across Europe’s spectacular mountain landscapes, revealing how these remote regions have shaped humanity’s past and continue to influence its future. Through powerful personal stories and breathtaking scenery, it shows how mountain communities are adapting to change—using innovation to preserve ancient traditions, from drone-guided reindeer herding in Norway to sled dogs assisting hikers in the Italian Alps—while the return of the bearded vulture to Spain offers hope for the future of these fragile environments.