Teams of experts from around the globe come together to solve some of history's greatest mysteries. Jake Norton finds who got to the top of Everest first, Whitny Braun determines the authenticity of a photo of Abraham Lincoln on his deathbed and more!

Holy (un)Holy River follows the world's most revered and reviled river, the great Ganges River of India. The film's directors, Jake Norton and Pete McBride, followed the river source-to-sea in 2013, documenting its intense beauty and struggles. From its pristine headwaters on the Gangotri Glacier in the high Himalaya Mountains to the fetid, dead trickle in the north Indian heartland to its complex meeting with the sea at the Bay of Bengal, Holy (un)Holy River shows the complexities and dichotomies of this river and watershed with is at once the lifeblood of 500 million people, the spiritual inspiration for a billion Hindus, and one of the most troubled and threatened rivers in the world. The river's story is told through haunting imagery, contemplative scenes, expert interviews, and a journey of some 1,600 miles.

High and Hallowed: Everest 1963 is the deepest story of the greatest Himalayan climb in American mountaineering history. Showcasing the daring and visionary efforts of the 1963 American Mount Everest Expedition, the film examines the sheer commitment, step-by-step struggle and lasting impact of America's first ascent of Mount Everest and the pioneering first ascent of West Ridge by Tom Hornbein and Willi Unsoeld. Five decades later, High and Hallowed returns to Everest to find out if the essence of risk, adventure and the unknown that drew the first Americans to the summit still exists on Everest today.

Ueli Steck (Switzerland), Simone Moro (Italy) and Jon Griffith (GB) are not like 95% of the climbers on Everest: they don't use oxygen, altimeters (improperly called Sherpas), or fixed ropes. In 2013, the trio aims to repeat the arduous Western Spur. The Sherpas have the mission to equip the mountain with fixed ropes on this famous day, up to Camp 3: ropes without which customers of commercial expeditions could not climb Everest. An argument ensued, insults were hurled from both sides. The confrontation at Camp 2 degenerated: a Sherpa water bottle physically attacked the trio of Europeans. Blows and stones were thrown and threats led the trio to flee the mountain. The Réel Rock film crew, which is part of the climbing team, films this chaos without complacency.

During a season of carnage on Mount Everest, a team of elite climbers attempt to solve the mystery of George Mallory and Andrew Irvine - lost during their record-breaking climb in 1924. Finding Irvine's body could rewrite the history of Mount Everest.