Voir Yellowstone, Series 1 - Episode 1

As we follow the grip of winter over the course of six freezing months, we chart the fortunes of Yellowstone's wildlife in a finely balanced fight to survive. Bison and elk struggle to feed with the grass buried under some of the deepest snow in America, while the wolf grows stronger during the harsh winter months. All of their fates are ultimately linked to the power of Yellowstone's volcanic heart.