In the heart of the Caucasus lies the country of Georgia, one of the few places in the world where transhumance is still practiced. The seasonal movements of people with sheep between summer and winter pastures follow routes determined by the seasons and growth of the grass. They have been treading for millennia and remain vital for the livestock keepers of Georgia. It is a journey exposed to the dangers of weather, disease, and wolves. The weak do not survive, and it takes experience borne of generations of knowledge to herd them there and back.