Filmed over the course of a year in Yellowstone, this documentary tracks the area's wildlife as they grapple with life and death within one of America's last remaining wilderness regions.Filmed over the course of a year in Yellowstone, this documentary tracks the area's wildlife as they grapple with life and death within one of America's last remaining wilderness regions.Filmed over the course of a year in Yellowstone, this documentary tracks the area's wildlife as they grapple with life and death within one of America's last remaining wilderness regions.