简介：资深生存主义者尝试在荒凉、危险的环境中生存21天。为了争夺有限的食物、水和住所，男性和女性都必须挑战人类耐力的极限，同时还要避开对地盘敏感的食肉动物和充满毒液的爬行动物。因为别无选择，竞争者们很快就了解了彼此以及他们周围的环境，他们还希望自己的本能、生存技能和勇气能很好地为他们服务。

简介：As Alone enters its fourth season, the competition series shakes things up with a new twist the contestants are dropped off in a remote location as pairs. Seven pairs of family members travel to a rugged region of British Columbia, where they are separated and dropped off miles apart from each other. Each player must navigate the wilderness to locate his or her partner. Once reunited, the loved ones have to create their own shelters and forage for their food while overcoming rough weather conditions and deadly predators. They have nothing more than the contents of their small backpacks and 10 tools split between them to help with their survival. They also have enough camera gear to record their experiences because -- as in the past -- there is no camera crew. The last duo standing at the end of the season is declared the winner and takes home the $500,000 grand prize.