Discovery Channel sends its most advanced high-altitude cameras once again to the world's tallest mountain to document an epic climb where ambition overrides agony, exhaustion -- and the chances of survival.

"Everest 2: Beyond The Limit," the second season of Discovery Channel's acclaimed series, documents the grueling April/May 2007 summit attempt by an international group of climbers. Airing in eight parts, the series makes its world premiere on Tuesday, October 30, at 10PM ET/PT, and airs every Tuesday at 10PM through Tuesday, December 18.

New this year, beginning November 27 at 11PM ET/PT and airing following the last four episodes of the series, viewers can catch the world premiere of "After The Climb," hosted by Phil Keoghan (The Amazing Race). This four-part series features amateur climbers from the 2007 climb, joined by an illustrious pantheon of Everest mountaineers, for a candid conversation about climbing the mother of all mountains, their individual climb experiences, their motivations and concerns about attempting something so dangerous, whether technology and willpower are enough in the face of the power of nature, whether any of them could survive without the Sherpas, and more.

The 2007 climbing season was the busiest yet, as more climbers than ever before faced the extreme conditions on Everest in an attempt to fulfill a dream. Seven lost their lives, most did not reach the summit, and those who did will never be the same.

For "Everest 2: Beyond The Limit," a 17-member production team followed an expedition of climbers and professional mountain guides, organized and led by New Zealander Russell Brice. Throughout the eight-hour series, viewers go on a journey with the climbers, gaining a unique insight into the physical and mental strength needed to conquer Mount Everest. High-resolution Sherpa-cams give viewers a unique insight into the dangers of the mountain and what climbers go through for the chance to briefly stand on top of the world.

Returning this year are asthmatic Iron-Man competitor Mogens Jensen from Denmark, who once again tries to summit without supplemental oxygen, and Hollywood motorcycle enthusiast Tim Medvetz, who had to be talked into turning back last year only 350 feet below summit. Joining them are several climbers new to "Everest 2: Beyond The Limit," including Katsusuke Yanagisawa of Japan who, at 71 years old, wants to become the oldest man ever to summit Everest; Monica Piris, from England and the team's high altitude doctor; Betsy Huelskamp, a Los Angeles-based journalist who interviewed Medvetz after his failed 2006 attempt and was inspired to try the climb herself; David Tait, attempting a world-first double traverse to raise money for a charity close to his heart; and Phurba Tashi, Himalayan Experience's most experienced Sherpa who accompanies Tait. Other climbers include Rod Baber from England and California physician Fred Ziel.