On a clear night in June 2005, four Navy SEALs left their Afghanistan base for the Pakistani border on a mission to capture or kill a notorious al Qaeda leader. This is the story of fire team leader Marcus Luttrell and that desperate battle in the mountains. It is the story of the teammates who fought ferociously beside him until he was the last one left. And it is the story of how, badly injured, Luttrell fought off assassins for four days before being taken in by a Pashtun tribe that risked everything to protect him from the Taliban.