Made To Be Broken

https://www.redbull.tv/video/AP-1QJ5RKYGN1W11/made-to-be-broken

Ultrarunner Karl Meltzer has dreamed of setting the speed record for crossing the Appalachian Trail as long as he’s been running. Now Karl sets out for his third and final attempt to run the 2,189 miles (3,523km) in less than 46 days, 8 hours, 6 min.