All-stars Fernando and Dani land in a forbidding rainforest in Ecuador for their third challenge where jaguars, caimen, anacondas and bullet ants are on the prowl. But their divergent approaches to primitive survival might do them in first.

Lynsey, a survivalist who thrives in partnerships, finds herself at odds with her partner Darvil, whose lone-wolf tendencies become destructive in the grueling landscape of Lapalala, South Africa.

Three young survivalists test their skills in the coastal rainforest of Ecuador, where they risk their lives scaling a massive rock cliff to forage for food.

Southern good ol' boy Justin and a California hippie named Dani test their survival skills.

Two fan survivalists are in over their head in brutal South Africa.

Two fans face a challenge surrounded by herds of territorial cape buffalo.