Ant Middleton doesn’t sit still for long. He’s a former marine and sniper, perhaps best known for his role as chief instructor in SAS Who Dares Wins. In 2019 he conquered one of the biggest challenges known to man - climbing Mount Everest. This year he attempted a dangerous climb up K2, one of the world’s most treacherous mountains. He's a perfect example of someone who never gives up, even if the odds are against him. But in this episode, he reveals just how close he came to quitting his climb of K2 - something he’s never admitted before.