Dropped into the brutal South China Sea, 12 elite survivalists try to survive 40 days on land and sea. Nearby, two all-star survivalists take on an unprecedented 60-day challenge beginning in the jungles of the Philippines.
With resources dwindling, the survivalists venture into the shark-infested waters of the South China Sea searching for a much-needed meal. The all-female team is punished by scorching heat, brutal storms and a deadly insect that could end their challenge.
Jeff and Laura find themselves caught in a menacing electrical storm while fishing on the open water. On the all-female team, one of the survivalists struggles in the harsh conditions and contemplates tapping out of the challenge.
Shark-infested seas and intense tropical storms terrorize the survivalists causing one challenger to contemplate quitting. Duke, James and Gabrielle decide to take a risky journey on the high seas while the newly merged team of six realizes that more people means more mouths to feed. Jeff and Laura continue to thrive as they remain committed to their team of two.
Russell falls ill after eating too many lemons and Riley finds herself alone after both her teammates tap-out. Dwindling resources force the survivalists on a trek through the dense jungle to get closer to the eventual extraction point. On the way, they encounter venomous snakes and caves inhabited by hundreds of bats.
Charlie leaves the camp in a huff after an argument with his fellow survivalists, and tensions rise in the second cave when Team Jeff and Laura gloat and refuse to share their food or hooks. Later, the two larger groups meet and share resources but both are still battling starvation.
The Six-Pack is devastated after Russell is forced to tap-out due to a snake bite and Laura shocks Jeff when she changes the terms of their deal. Later, the three teams decide to join-up for the next leg of their hike towards the extraction point.
Jeff is dismayed to hear that Laura wants them to join the larger group to finish out their 60-day challenge. Duck makes an alarming decision regarding Charlie and one of the survivalists falls asleep too close to the fire. Later, the team comes up with a fair system to divide their food catches.
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.