Watch Four Trails

'Four Trails' tells the story of one of the world hardest ultra marathons. Set in Hong Kong, participants must traverse 298km and climb over 14,500 feet of elevation in under 60 hours to be deemed a 'Finisher' and under 72 hours to be a 'Survivor'. Unsupported and with an ever evolving set of gruelling rules, follow the astonishing stories of those who dare attempt such a feat.

Four Trails is a 2026 documentary with a runtime of 1 hour and 41 minutes.