Gabrielle Balassone

A newly-formed tribe quickly works together to stalk and kill a caiman; the pressure to trek forty miles to extraction pushes two teams to make risky migrations; a survivalist is on the brink when medics discover parasites in their digestive system.

A massive food win buoys Terra and their whole team; on the heels of a caiman kill, Malorie sets her sights on a bigger prize; Heather is shocked when Adam tells her he has not been sharing food; a scorching migration could end Heather's challenge.

12 elite survivalists take on the sub-freezing Rocky Mountains of Montana.

Far from extraction, Kaiela leads her team on a punishing trek that puts her challenge at risk; Adam and Heather's smoldering tension makes the new camp choose sides; desperate for protein, a risky survival choice pushes Heather to her breaking point.

The Peruvian Amazon's dangerous elements test 12 survivalists. XL rookies look to last 40 days while vets try to make 60 and become Legends.

The legends put their mark on the challenge and EJ makes poison blow darts.