Four world-class alpinists including National Geographic's Explorer of the Year Gerlinde Kaltenbrunner team up in a dangerous foray of high altitude mountaineering in the breathtaking documentary K2: Siren of the Himalayas. The film follows an attempt to reach the summit of the world's most challenging peak on the 100-year anniversary of the Duke of Abruzzi's landmark K2 expedition. K2 also explores the history and geography of the legendary Karakoram Mountain Range, while contemplating the risks, rewards and personal nature of exploration in an age when there are few blank spots left on the map. The second highest peak on Earth at 8,611 meters, K2 is also one of the most dangerous mountains to climb: for every four people who have reached the summit, one person has died trying. As Ernest Hardy wrote in The Village Voice, "K2 offers great beauty while capturing something of what pulls the adventurous to try to reach the world's second highest peak."