Jeff Zausch

In the Australian Outback, 14 of "Naked and Afraid's" best, including Laura, Matt, Ky and Max, vie for the title.

The Peruvian Amazon's aggressive piranha, venomous fer-de-lance and even poisonous plants test 12 survivalists; XL rookies look to last 40 days while vets try to make 60 and become Legends; four survivalists will be gone in the first four days.

Shocking sabotage and a midnight medical emergency upend the competition; the elimination challenge requires a photo finish; in a test of skills, survivalists must build primitive ladders, torches and hooks to claim critical caches.

Pushed to the brink, three competitors send shockwaves through the Outback; all camps are disbanded and challenges going forward will be solo tests; hunting competition offers a protein reward; medics are called when a survivalist steps on hot coals.

Steven takes a huge risk when he raids a caiman nest for eggs; Dan and Waz join forces to snare the vultures circling their camp; Amber, Trish and Jen take on a huge project, but tensions could tear them apart.

Matt's tactics spark tension in another camp; survivalists compete in a primitive axe challenge; after the first big-game kill, a competitor must choose to keep or share their win; physical and mental strain of the challenge sends a survivalist home.