DISCOVERY CHANNEL

Survivalists EJ Snyder and Kellie Nightlinger put their skills to the ultimate test by attempting to survive the African Serengeti for 21 days with no food, water or clothes.

Clint Jivoin and Laura Zerra are on a Panamanian island for 21 days. Plagued by sand flies and threatened by snakes and crocodiles, the pair have to stick together to survive in the tropical hell.

Two survivalists are stranded on a deserted island for 21 days. However, with no proper food or drinking water, the two will need to put their differences aside to survive.

Two naked survivalists are challenged to survive for 21 days in the Costa Rican rainforest, despite a deadly snake bite. They encounter challenges including rain, illness and animal attack.

Puma Cabra and Julie Wright have to survive in Borneo for 21 days. The jungle is their foe as they battle with sickness, starvation and the deadly wildlife testing their resolve and determination.

Billy Berger and Ky Furneaux have to survive 21 days in the Louisiana swamp. They are washed out of their shelter by storms and have to tackle deadly snakes while avoiding the hungry alligators.

The participants come together to share insight and rare footage of the competition of having to survive the extreme environment and the dangerous wilderness.

Survivalists EJ Snyder and Kellie Nightlinger put their skills to the ultimate test by attempting to survive the African Serengeti for 21 days with no food, water or clothes.

From mountains to forests to waters, the host visits different places in search of wild ingredients and transforms them into gourmet meals for friends and family.

Adventurer Bear Grylls demonstrates how to survive in Ecuador's jungles by building bamboo bridges, making a bow and arrow, and showing which plants are poisonous.

Bear Grylls shows survival techniques in Namibia's harsh desert environment. He demonstrates how to endure one of Earth's hottest and most desolate regions.

After becoming stranded in Northern Africa, Bear shows his resourcefulness by devising a jugaad to find water, catching an octopus, eating a bug burger and building a resting place.

Bear Grylls attempts to survive the extreme conditions of Norway with his team while equipped with the latest technology.

Bear takes viewers behind the scenes to meet the crew that follow his every step as he battles his way through the world's wildest environments.

Survivalist Bear Grylls treks across the Siberian tundra and into the Sayan Mountains, demonstrating a wide range of survival skills.

Survivalist Bear Grylls treks across the Siberian tundra and into the Sayan Mountains, demonstrating a wide range of survival skills.

Bear is in Scotland off the coast around Cape Wrath. He fashions a wetsuit from a dead seal and has a close call with a rockfall before making camp in an old, upturned boat.

A dedicated team follows Bear Grylls, capturing his struggles and challenges on camera as he skydives, climbs sheer cliffs and crosses shark-infested waters.

Adventurer Bear Grylls survives the Pacific Ocean, encountering coral reefs, rip currents, and relentless surf and comes face to face with sharks.

Bear Grylls travels across Kenya to demonstrate how to survive the African savannah.

Bear Grylls shows how to survive the big island of Hawaii, home to Kilauea, the world's most active volcano and one of the toughest places on Earth.

Bear Grylls faces the icy peaks of the Chugach Mountains, Alaska, one of the toughest known environments. Bear uses his specialist survival skills and knowledge to journey across Alaska.

Darrell gets a chance to school his friend in Moreno Valley, California. Meanwhile, Dave's fortunes go up in flames as Jarrod and Brandi dive back in and hit bottom.

From mountains to forests to waters, the host visits different places in search of wild ingredients and transforms them into gourmet meals for friends and family.

From mountains to forests to waters, the host visits different places in search of wild ingredients and transforms them into gourmet meals for friends and family.

Actor and singer Wang Yibo partners up with six Chinese exploration experts to undertake outdoor adventures in extreme environments, all while revealing nature's hidden wonders.