It’s been a journey, you could say. A real barnburner. A man at the top of his professional prowess, his mountain bike a natural extension of him, one of the best riders the sport has ever seen. But like all great heroes, adversity comes a knocking. For Graham Agassiz, a relatively benign descent—one he’s done a hundred times before—reached out with its wicked limb and smacked him down. Shoved a fat slice of humble pie in his kisser. With his neck broken and a career in jeopardy, the road back to the top is now lined with dangers and demons.

• Documentary