Edge of the Unknown with Jimmy Chin Episode Rating Graph

Conrad Anker, a renowned mountaineer and professional climber who suffered a heart attack while at 20,000 feet on Lunag Ri, the tallest unclimbed peak in the Himalayas.

Travis Rice, a big-mountain freeride snowboarder, filmmaker and designer who survived a near-fatal avalanche while riding in the backcountry of Alaska.

Will Gadd, a legendary climber who would stop at nothing to accomplish his goal of being the first to climb Helmcken Falls, a 430-foot frozen waterfall in British Columbia.

Justine Dupont prepares to ride big waves, but she has to face down fear and risk.

Jimmy Chin, who recounts his own story of how a class four avalanche transformed the way he approaches his work and life.

Kayaking legends Ben Stookesberry and Chris Korbuic accumulate together hundreds of first descents in the most dangerous rapids in the world; but the Lukuga River, in Congo, has left a particular mark on them.

Sarah McNair Landry and her brother Eric share their story of kite-skiing the Northwest Passage in winter only to be hunted by polar bears.