Walker Higgins is one of the toughest endurance athletes on the planet—finishing grueling races like the 135-mile Badwater through Death Valley and the legendary 153 Miles Spartathlon in Greece. But his path wasn’t always paved with finish lines. As early as high school Walker found himself battling addiction. At 16 he hit rock bottom with an accidental LSD overdose. That he began the climb back—not just to sobriety, but to building a life of purpose and discipline. Today, he’s not only a world-class ultramarathoner, but also a successful entrepreneur and an example of what true endurance is about!