300 triathletes are in Norway to take part in the toughest challenge of their lives, the Norseman Xtreme triathlon. The epic triathlon includes a 3.8km swim in an icy fjord followed by a 180km bike ride with 5000 meters of climbing, and finally a marathon up a mountain. We follow 3 competitors as they take on this epic challenge against the stunning scenery of the Hardangerfjord and mountains. Alan Hovda, 3 times winner of the race, is chasing his 4th victory; GTN's Mark Threlfall, an ex-professional but has never completed an iron-distance triathlon and Ole Peder Moe who despite challenging family circumstances puts in the race of his life with some emotional consequences.
