On a bet made between friends, a globe is spun and where a finger lands will determine the destination for a multi-day run. Tajikistan. Bonded by their love of running, and now committed to seeing their bet through, the friends pull out a map and plot their route through the Bartang valley, taking them over 300 miles (500 kilometers) across the country from the border of Afghanistan to the border of China. Surrounded by enormous mountains in what the locals call “the roof of the world,” they run over a marathon a day for a week, discovering a wild landscape and what they are capable of when pushed to their limits.