Undiscovered

Could a newly discovered photograph be the last one ever taken of former president Abraham Lincoln on his deathbed?

Eleven lives were lost after deadly weather conditions struck Mt. Everest in the spring of 2019. Now, the world's most experienced climbers reveal what it's like to survive those conditions and what it would take to prevent another similar tragedy.

Mountaineer Jake Norton and his team search the upper reaches of Everest for undiscovered clues that prove who was the first climber to get to the top. The mystery has perplexed historians for a century, and a big find would change history forever.