Ultrarunner Gary Robbins takes on the Barkley Marathons, the Tennessee race built to break its entrants: a hundred-mile course through briar patches and unmarked wilderness with a sixty-hour cutoff that almost nobody meets. The film follows Robbins through his attempts at the race, including the 2017 finish that became infamous in trail running circles, when he crossed the line seconds over the time limit after a wrong turn cost him the win. Interviews with Robbins and people close to him fill in what training for an event like this actually looks like, and what it costs to fail at something this publicly after years of preparation. Race director Gary Cantrell's creation looms over every scene as the kind of event designed less to be won than to be survived. The camera stays close on the exhaustion, the navigation errors, and the final sprint, letting the clock do the storytelling. It is a short, specific portrait of obsession measured in minutes and seconds.