12 elite survivalists enter an unprecedented 40-day XL challenge. In the ocean off the coast of the Philippines, they must survive a shark-infested ocean and then face the dense Philippine jungle crawling with deadly snakes and monitor lizards.

12 elite survivalists are dropped into the brutal South China Sea where they must survive 40 days on land and sea. Plus, 2 All-Star survivalists enter the same challenge looking to survive not just 40 but an unprecedented 60 days.

With resources dwindling, the survivalists venture into the shark-infested waters of the South China Sea searching for a much-needed meal. The brutal conditions on both land and sea lead to the Philippines claiming its first victim.

Hit by violent tropical storms, the survivalists are pounded by torrential rain and heavy surf. When one team takes to the open seas, they're stalked by territorial sharks. The storms and lack of food brings one survivalist to their breaking point.

With extraction on the other side of the island and the open sea too dangerous to navigate, the only way out for the survivalists is to go in. But trekking through the jungle they must watch out for venomous centipedes, vipers, and monitor lizards.

A survivalist on a hunting expedition is bitten by a snake and requires an emergency medical evacuation. Tensions rise between teams as hunting grounds get territorial. One group scores protein while their neighbors are on the brink of starvation.

A grueling five-mile hike into the snake-filled jungles of the Palawan island pushes the three remaining teams of survivalists. The one-day journey turns into two days of chaos and one survivalist must be medically evacuated from the challenge.

The group is devastated when two critical survivalists leave the challenge. With just 10 days left before extraction, Jeff is forced to change his survival strategy but a medical emergency quickly has him on the brink of a tap out.

Stalked by the deadliest animals including lions, spitting cobras and bull sharks, survivalists' every step could bring disaster. To make it 40 Days, they must use their skills to avoid becoming prey while hunting the most dangerous creatures.

Season Finale. Medics closely monitor Jeff's high fever and prepare his evacuation. The others scramble for a 5-mile extraction journey through shark-infested waters. A survivalist pushes too hard leading to a medical emergency on the open sea.

Jeff is called out for his "no hand-outs" survival strategy but refuses to back down. Through a free-wheeling discussion, new interviews, and never-before-seen footage, it's a new look into how the survivalists survived land, sea and each other.

Rescuing stranded climbers with no coordinates is a daunting task.

Jason preps his helicopter for the world's highest landing spot.

Ryan battles the elements racing back to Lukla with sick climbers.

Ryan confronts an uninvited climber trying to hitch a ride at 17,500 feet.

Jason and Siddartha try to save climbers along a treacherous icefall.