The nine remaining teams face their fears in their first challenge after being transported via helicopter into dangerous alpine terrain, where they must climb to the top of a jagged cliff. Meanwhile, tempers flare on one team, and with little food, some contestants are running out of steam. In the end, one team will be sent home and only one duo will remain - the team that has shown the most heart, courage, initiative and resolve in their quest to "get out alive" will claim a life-changing grand prize of $500,000. Bear Grylls hosts.