Documentary series focusing on the wildlife of America's Yellowstone National Park. A World Heritage site with an area of 3,400 square miles, Yellowstone boasts lakes, canyons, rivers and mountain ranges, and is home to hundreds of species of mammals, birds, fish and reptiles. Set against a backdrop of stunning scenery and majestic panorama's, this series follows the lives of Yellowstone's wolves, grizzly bears, antelope and buffalo, as they try to survive three widely differing seasons.