This week the Erins explore the limits of human endurance in Safety to Nome, available to rent on Amazon. This doc really conveys the cold ass experience of competing in ultra marathon, the Iditarod Trail Invitational. Us lower 48 types might expect to find mushers and sweet doggos in this race, but alas, it is only for walkers, skiers, and bicyclers. Find out why some choose to pit themselves against mother nature in this race that can be up to 1000 miles!