01.17.138:22 PM ET

In August 2008, 18 of 24 climbers reached the summit of K2. Forty-eight hours later, 11 people were dead. What happened on that fateful day has never been resolved. Utilizing found footage, interviews with survivors, and seamlessly realistic reenactments, The Summit hopes to solve the mystery of what actually happened on that day—the deadliest in mountain-climbing history.