Somewhere in the hills of Tennessee, there is a notorious race with a changing route, no set start date and a hidden application process from which most are rejected. And if you make it in: participants face vague directions, an unknown start time (signaled by the lighting of a cigarette) and of course a 60-hour physical endurance test which is the competition itself. Interested? Welcome to the Barkley Marathons, a trail race that only saw 10 runners complete the course in its first 25 years. Running completely counter to the idea that anything is achievable if you put your mind to it, the race has gained international cult status, thanks in no small part to its eccentric and irresistible founder Lazarus Lake, who will grant you entry for $1.60, a flannel shirt and a license plate. Oddly inspirational and wildly funny, The Barkley Marathons: The Race That Eats Its Young introduces the world to this tiny microcosm of tradition, ambition and camaraderie.