Sheep are perhaps the most underrated animals in the world. The unassuming ruminants have provided humans with food and clothing for ten thousand years. They have spurred the growth of entire societies and helped empires to rise. Could it be that these seemingly simple creatures have changed the course of world history? That without them, we would be living very different lives? What we can say for sure is that there are around one billion sheep on earth – in service of humans. To this day in many regions, they safeguard livelihoods and serve as an economic engine. Without these patient and undemanding animals, who knows how far we would have come? ‘Planet Sheep’ undertakes a journey into history, presence and future of the companionship of people and sheep.