Bear heads to the Dolomites mountain range in Italy to re-live the experience of alpine survivors and face the extreme challenges they had to face.

Bear enters a variety of extreme environments to re-live the experiences of three groups of survivors and face the extreme challenges they encountered.

Bear re-lives the experiences of desert survivors.

Bear enters the Guatemalan jungle to re-live the experience of three groups of jungle survivors.

Bear looks back at his most memorable survival experiences from the series and picks out particular situations for the unique challenges they posed.

Bear heads to Canada's snow covered Pacific coast mountains to re-live the experience of survivors.

A seasoned adventurer and survivalist deliberately "strands" himself in remote locales and makes his way back to civilization to provide in-depth advice for travelers who may find themselves lost on what was expected to be a routine hike or other trip.

Famed survivalist Bear Grylls says goodbye to Hollywood and takes celebrities on journeys into some of the wildest locations in the United States and around the world. Whether it's searching for food in the most remote environments or battling intense weather, each episode chronicles the celebrity's experience of pushing their body and mind to the limit to successfully complete the adventure.

Noted survivalist and adventurer Bear Grylls presents footage of great escapes and near-death experiences in this program that sees other people in danger instead of Bear. The people who survived the events in the videos -- including runaway cars, animal attacks, and parachutes that don't open -- tell the stories behind what happened to them. Episodes also feature experts offering survival tips and how-to advice for viewers. At the end of each episode, Bear chooses his favorite clip that aired during the show.

Bear Grylls is taking on an entirely new team--a group of tech-savvy kids. This group of brave kids will leave their smartphones and games behind and embark with Bear Grylls into the wilderness. The team visits Snowdonia and spends two weeks in the wilderness and how to survive. They learn leadership skills, empowerment, and how to face their fears. Grylls faces the trials and tribulations of having pre-teens and teenagers along for his journey in the wilderness.

Discovery Channel takes the ubiquitous survival show theme to the next level by stripping it to its bare essentials. In "Naked and Afraid," complete strangers -- usually a man and a woman -- meet in a very unique way: They're stranded in a dangerous, desolate location, without food or water, and they're completely naked. Each episode follows the adventurers as they attempt to survive on their own with nothing but a personal item and the knowledge that the only prize is their pride and sense of accomplishment. Because there is no other choice, competitors quickly get to know one another -- and their surroundings -- and hope that their instincts, survival skills and intestinal fortitude serve them well.

Bear Grylls drops 12 ordinary British people on an uninhabited island in the Pacific for the toughest five weeks of their lives -- but it isn't just about survival, there's a cash jackopot waiting to be discovered.

Adventurer/survivalist Bear Grylls hosts and narrates this six-part docuseries, which draws attention to the volatility of Mother Nature and the resilient animals that survive Earth's most extreme habitats. Each hourlong episode characterizes one of the planet's roughest environments -- including jungles, mountains, deserts, oceans, the poles and grasslands -- and how each of its inhabitants acclimate to its turn of events. As Grylls guides viewers through these extreme locations, the incredible ways in which animals have adapted to survive against all odds are celebrated. As well, underscored is a sense of urgency to the effects of climate change.

Testing the limits of the human body time and again is what English explorer Ed Stafford does for a living. Self-filming survival experiments for Discovery Channel, Stafford's adventures have included attempting a 60-day stay on an uninhabitable tropical island in the Pacific Ocean without any supplies, including clothes. Now, he's back to battle other extreme environments around the world, like subtropical forests, dry deserts and desolate mountain ranges. In 10 days or less, Ed's task is to reach civilization. He has a camera kit but no map, compass or tools, so he must rely on his extensive survival skills and willpower to combat hunger, thirst, fatigue and dangerous predators.

Surviving in the wild is not an exact science. Beyond the basics of finding water, food, shelter and eventually help, opinions vary. Two experts tell how they think it's done in this series, as initial episodes feature trained survivalists Dave Canterbury and Cody Lundin demonstrating the skills and creative thinking that can help one cope in tough surroundings. Equipped with minimal gear, the pair are left in remote locations -- an uninhabited island off Nova Scotia, a New Zealand mountaintop, deep in the Everglades, the jungle of Thailand, and the desert of Baja California, to name a few -- where they battle the elements and sometimes each other. Season 3 introduces U.S. Special Ops veteran Joseph Teti to replace Canterbury, in the middle of Season 4 primitive survivalist Matt Graham of Discovery's "Dude, You're Screwed" replaces Lundin, and partway through Season 5 producers forge new partnerships by rotating survival experts as hosts.