"Ten floors … right in front of my very eyes exploded and I had no idea what had happened." - James Dorney Fiona Wilde was on a guided tour in an Amazon nature reserve in Ecuador when she was abducted at gunpoint. On September 11, 2001, James Dorney was on the 92nd floor when he saw a plane go into the North Tower of the World Trade Centre. He walked the entire perimeter of the South Tower before escaping in the stairwell. Rob Hewitt was separated from his dive boat off the coast of New Zealand in 2006. He survived at sea by treading water for four days and three nights. Over the next two weeks, Insight asks, what does it take to survive? We look at the ways in which humans keep going in the face of extreme adversity.