Ultrarunner Karl Meltzer has long dreamed of setting the speed record for crossing America's Appalachian Trail. Now he sets out for his third and final attempt to run the 3,523km (2,188 miles) in less than 46 days, 8 hours, 6 min.

• DirectorMatt Katsolis
• Release9 December 2016
• GenreDocumentary
• Duration0h 41m
• Budget?
• Revenue?
• Rate
  

  6.5
  15 reviews
• Productions

  Red Bull Media House, Interpret Studios