In 2007, Col. Marc Hoffmeister was a major on a Military Transition Team advising Iraqi Security Forces when an explosively formed penetrator, a specific and devastating form of IED, hit his Humvee. He talks about the event and his team's performance in the immediate aftermath, along with an incredible story about a big part of his recovery—leading a team of wounded veterans to the summit of Denali, the tallest mountain in North America.