is a hero. he rescued his men from almost certain death. he survived against all the odds, and he did so with compassion, leadership, bravery. reporter: the search site in the weddell sea follows the ship captain s notes from when the endurance sunk 106 years ago. it took 34 dives by underwater robots in today s ice-clogged waters to find the shop it is in remarkably good condition. that s right. it is. it is. partly that s because of the very cold waters that it sits in it s a bit like a refrigerator, so it preserves everything onboard. reporter: protected by an international treaty, the ship must not be disturbed there the endurance will remain, a haunting testament to man s will to survive. anne thompson, nbc news pretty remarkable. up next, the lens of war i ll speak with some photographers who risk their lives to bring us these searing images