Chris McDougall takes us to pioneering research laboratories in Germany, an assault course in the Brazilian jungle and Parisian parkour routes, exploding common exercise myths. Just as Born to Run inspired casual runners to get off the treadmill, out of their shoes and into nature, NATURAL BORN HEROES will inspire casual athletes to take up cross-training, mud runs, parkour and free-running to bound-and-climb, swim, skip, wade, and jump-their way to heroic feats.