At 8,200 metres on K2, in deteriorating weather and near the summit, Peter Hillary made what he calls a “bravely independent” decision: he turned around and descended alone into the storm. The rest of the group stayed together and pushed for the top.

Sir Wayne Smith — aka “The Professor” — is one of the most decorated coaches in New Zealand rugby history. In this conversation he opens up the systems behind decades of winning.

He found the cable-box switch that unlocked adult content when he was just five years old. For the next three decades, porn was Dr Luke Sniewski’s coping mechanism for loneliness, stress and fear - through a professional football career in Italy, a burnout that ended his training business, and relationships that all ended the same way.

Dillon Boucher was so sure he'd made the 2000 Olympic team that his wife had already booked her flights. But when they announced the squad in alphabetical order — by the third one he knew he hadn’t been selected.

Sir John Kirwan is one of New Zealand's greatest All Blacks — but, while he lived the life of a champion, his mental health suffered.

Rob Hamill is one of New Zealand's most storied and decorated rowers - a silver at the World Championships in 1994, the winner of the first ever Atlantic Rowing Race in '97, and a man who has lived a life most people couldn't imagine. But beneath the athletic achievements is a story that shaped everything.