The six remaining teams arrive via helicopter to their next challenge, which requires them to cross a rope that's suspended 100 feet above a deep gorge. The extreme heights, as well as the harsh camping conditions, push the mental and physical limits of the contestants.
The seven remaining teams travel via a doorless helicopter to a raging waterfall, which they then must ascend. In addition to the challenge, they deal with hunger and one duo reaches their breaking point.
Ten teams of two get their first taste of extreme challenges and conditions when they arrive on New Zealand's South Island in the premiere of this reality competition hosted by wilderness-survival expert Bear Grylls.