Ultra-runner Ryan Sandes returns to Namibia's Fish River Canyon, a five-day, 84-kilometer hiking trail, aiming to cover it faster than anyone has managed on foot. The film follows him through the canyon's heat, loose rock, and long stretches without water, using his attempt to ask why anyone would choose this kind of suffering when it makes no practical sense. Interviews with Sandes sit alongside footage of the run itself, the switchbacks, the dry riverbeds, the moments where his pace breaks down and he has to talk himself back into motion. The film frames endurance running as a case study in human irrationality: no prize, no shortage of easier ways to spend five days, just the decision to keep going. It stays close to Sandes throughout, letting his fatigue and small victories carry the story rather than expert commentary or statistics. The canyon itself, one of the largest in Africa, does a lot of the visual work.