As the final four trekkers reach an impassable chasm at the peak of their journey, they must use a helicopter long line to cross one by one.

As the group resumes their journey after a storm forced them to evacuate to lower elevation, they face a daunting chasm known as King

As the final seven trekkers confront a new phase of their journey

Tensions rise among a trusted alliance following an argument regarding the checkpoint vote before the group sets out to reach the snowline. After crossing a frigid alpine lake by kayak, the trekkers must pass a massive chasm using a gravity line to get to the next camp.

After an unexpected checkpoint elimination, the group struggles when they must cross a precarious deep ravine by crawling over a bridge made of two parallel ropes to stay on their route.

As the trekkers hit the halfway mark on their journey and venture toward the snow line, a divide in pace emerges within the group. After a daunting rappelling obstacle down a 500-foot vertical rock face, the group learns that they have broken a fundamental rule of THE SUMMIT – that the group must travel together at all times – and having ignored the Mountain's Keeper's repeated warnings, must endure the game-changing consequences.

After a weather delay pauses the group's progress, they set out to try and make up for lost time. When they reach an obstacle that forces them to split into pairs, one trekker is left to face the challenge alone, bringing alliances and connections into question.

As the trekkers struggle with the arduous terrain, the division of alliances among them becomes noticeable.

After an unexpected twist, game plans shift as they begin to tackle harder terrain. While the trekkers are challenged with crossing a rickety bridge, emotions surge as the Mountain's Keeper arrives with a shocking choice for the trekkers to make, leaving one person

Sixteen ordinary Americans embark on a once-in-a-lifetime journey through the treacherous New Zealand Alps in an attempt to reach the peak of a towering mountain in just 14 days in order to keep their share of the $1 million prize they're carrying in their backpacks. After a medical emergency occurs just hours into the trek and the climbers face a perilous obstacle crossing a ravine, fears rise as the Mountain's Keeper, who is tracking them along their journey, forces the group to make their first brutal moral decision.