Steven Lee Hall Jr.

What happens when you put two complete strangers - sans clothes - in some of the most extreme environments on Earth? Each male-female duo is left with no food, no water, no clothes, and only one survival item each as they attempt to survive on their own.

The Discovery Channel's Shark Week, first broadcast on July 17, 1987, is a weeklong series of feature television programs dedicated to sharks. Held annually, normally in July or August, Shark Week was originally developed to raise awareness and respect for sharks. It is the longest-running cable television programming event in history. Now broadcast in over 72 countries, Shark Week is promoted heavily via social networks like Facebook and Twitter.

A group of the best survival experts in the world take on an un-survivable situation: 40 days. 40 nights. No food, water or clothes. To survive they'll need to master the environment, pushing far beyond the breaking point. Will even one be able to finish?

Four teams are dropped into forgotten corners of South Africa – spanning a ghost town, a vehicle junkyard, a cemetery, and even a mine shaft – where they must scavenge the wreckage for resources.

Winner takes all as 12 all-star Naked and Afraid survivalists battle to take home $100,000 and be crowned the Last One Standing in a head-to-head, multiphase challenge.