Every spring, shepherd Markus and his colleagues drive 1,400 sheep from South Tyrol across the Alps into Austria, climbing 3,000 meters over rockfall and a glacier, then reverse the route in autumn. The practice, called transhumance, is 6,000 years old and now recognized as world cultural heritage, but the film stays close to the physical risk of it: a slip on the ice can kill, and Markus says so plainly on camera. He spends the summer alone tending the flock on high pasture, treating sick animals with no one around for company, while his brother Johann runs the family farm in the Schnalstal Valley below. DW's cameras follow the crossing itself, the animals picking through loose stone and river crossings, and sit with the family afterward as they weigh whether the tradition can survive. Wool and meat barely cover costs anymore, so most sheep farmers now need second jobs, and the brothers talk candidly about whether their children will want to inherit a livelihood this precarious.