A documentary chronicling the 2025 Barkley Marathons, where the course struck back after a record five finishers in 2024 and a combined eight across 2023 and 2024, with Lazarus Lake recalibrating the difficulty through new book locations and course changes that left most of the field off course before the end of Loop 1, as howling wind and rain battered runners through the Cumberland Mountains, reducing the field to just a handful still moving by Loop 3, until only John Kelly remained to complete a Fun Run in 39 hours and 50 minutes, playing his own taps on the ceremonial bugle, a stark reminder that Barkley is just as defined by long stretches without any finishers as by its rare moments of triumph, and raising the question of whether the course has finally been recalibrated beyond the limits of human endurance.