'Everest Jump Live': Joby Ogwyn Reveals Terrifying Moment Atop the Mountain (Exclusive Video)

The Hollywood Reporter has the first look at Discovery Channel's upcoming special Everest Jump Live.

The cable network will broadcast wingsuit jumper Joby Ogwyn's attempt at the first wingsuit flight off the summit of Mount Everest in May.

At age 24, Ogwyn became the youngest American to summit Everest. In 2008, he set the world record for the fastest ascent of Everest, climbing from the base of the south side route to the summit in just nine and a half hours -- a journey that typically takes three or four days.

EXCLUSIVE VIDEO: Discovery Channel Prepares for Live Mount Everest Jump

In this clip, Ogwyn talks about his previous climbs, including the time he found himself without oxygen after reaching the summit.

"I thought, I'm going to die because I got myself in the worst possible bind you could put yourself in -- run out of oxygen after you've been using it, on the top," he says.

He then relates a conversation he had with another climber on his way down the mountain, when, after a few minutes of talking, he realized the man was dead.

Watch the video above to find out how he made it down safely -- and why he also calls it his "best day on the mountain."

For Ogwyn's stunt, Discovery plans to air two hourlong preshows revealing his training and preparations, followed by the live two-hour broadcast that will show Ogwyn's ascent to the summit and jump from the top. His custom-made wingsuit will be equipped with cameras providing a bird’s-eye view as he descends more than 10,000 vertical feet at speeds of more than 150 miles per hour.

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"I think Everest will always be the gold standard of mountaineering because it's the highest mountain in the world, and there is a power and a magic like a magnet," he says in the clip. "It draw you in, and it wants to draw you back again and again."

Ogwyn is conducting dozens of test jumps in California, Florida, Utah and the Swiss Alps and then travel to the Himalayas for final training. After six weeks of acclimatization, he will then take on Everest.