Season 4

40 :04x01 - From the Ashes

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41 :04x02 - All or Nothing

An outdoorsman and a surfer have to try and survive for three weeks in the Philippines with no fresh water and hardly any food.

42 :04x03 - King of the Forest

A self-proclaimed 'King of the forest' and a skilled endurance athlete take on the Alabama backwoods. They secure shelter and fire on Day 1, but once hunger kicks in it pushes one of them to do something we've never seen on Naked and Afraid before.

Source: Discovery Channel

43 :04x04 - Frozen in Fear

A marine biologist and a special forces veteran risk hypothermia at every turn as they take on Canada with no clothes. Bitter cold, torrential rain and wandering bears and moose make every night a struggle and an obstinate chipmunk pushes their patience.

Source: Discovery Channel

44 :04x05 - Rise Above

An openly gay horse trainer and an anxious wilderness instructor take on the daunting jungle of Amazonia. Constant rain and a lack of resources make one survivalist hit rock bottom quickly, while the other is forced to pick up the slack.

Source: Discovery Channel

45 :04x06 - From the Ashes

A biology student and an expert survival instructor team up on the swampy shore of Croatia. A strong partnership is formed through braving the elements and facing their demons, but takes a turn for the worst with a freak accident.

Source: Discovery Channel

46 :04x07 - All or Nothing

A hunter from Louisiana meets a California surfer girl on a deserted island of the Philippines. With very little water to tap into, dehydration soon sets in and the duo spends most of their time securing a reliable water source to ensure their survival.

Source: Discovery Channel

47 :04x08 - All Falls Down

An elite endurance athlete and a sensitive stay-at-home dad team up in a rugged Belize jungle where jaguars, venomous snakes, falling trees, and powerful storms threaten their evolving partnership.

Source: Discovery Channel

48 :04x09 - Contamination

After a typhoon scatters debris through a Philippine forest, a stay-at-home mom and stubborn trucker try to find a way to survive there. Combating sickness and no food, they come together and ward off hunger by eating a skunk.

Source: Discovery Channel

49 :04x10 - Hell or High Water

A special ops vet teams up with a single mom to fight torrential rains, flash floods, and sickness in Thailand's Sai Rung River Valley. It's a race against time as the pair puts their skills to the test before the river leaves them stranded from the crew.

Source: Discovery Channel

50 :04x11 - The Danger Within

A resilient mom from Washington is paired with a quirky spider-lover and dropped into the remote Seminole Forest of Florida. Terrorized by huge gators and 550-pound black bears, they are driven to their physical and emotional breaking points.

Source: Discovery Channel