If you thought 26.2 miles was tough, lace up your running shoes for a journey into the world of ultra-running. “100: Head/Heart/Feet” follows the day-to-day life of ultra-runner Zak Wieluns as he trains for and finally runs a 100 mile race. Established as a fundraiser for Vermont Adaptive Ski & Sports in 1989, the actual event is called the Vermont 100 Endurance Race, one of the original 100 mile runs in the USA.