In Alaska's remote and rugged wilderness, 96 sledding teams of mushers and dogs vie for the 2008 Iditarod title. This Discovery Channel series follows their amazing race from Anchorage to Nome as they try to outrun each another and outwit nature. It's the ultimate test of endurance as animals and humans must work together for 1,150 miles to achieve a common goal. Interviews give a closer look at who enters this grueling race and why.