Two friends attempt their first 100-mile mountain ultramarathon. The odds were stacked against Jayson Sime early in life: poverty, homelessness, dyslexia, bullying. But he learned to fight, literally and metaphorically, and battled his way to a successful career as a political organizer. In 2017, he entered his first 100-mile mountain ultramarathon, betting on his lifelong resilience to carry him to the finish line.