Alumni from reality TV and other forms of entertainment and first time cast members live together and compete against one another in physical and mental challenges for cash prizes.

The treacherous job of driving trucks over frozen lakes, also known as ice roads, in Canada's Northwest Territories and Alaska's improved but still remote Dalton Highway, which is mainly snow-covered solid ground.

Stephen Colbert took over as host, executive producer and writer of THE LATE SHOW on Tuesday, Sept. 8, 2015. The comedy-variety-talk show is broadcast five nights a week from the Ed Sullivan theater in New York.

Alumni from reality TV and other forms of entertainment and first time cast members live together and compete against one another in physical and mental challenges for cash prizes.

Stephen Colbert took over as host, executive producer and writer of THE LATE SHOW on Tuesday, Sept. 8, 2015. The comedy-variety-talk show is broadcast five nights a week from the Ed Sullivan theater in New York.

The mountains of North America hide dangers that few dare to face, but in spite of everything, some men have opted for this way of life in the wilderness.

The mountains of North America hide dangers that few dare to face, but in spite of everything, some men have opted for this way of life in the wilderness.

The treacherous job of driving trucks over frozen lakes, also known as ice roads, in Canada's Northwest Territories and Alaska's improved but still remote Dalton Highway, which is mainly snow-covered solid ground.