Pati Arana

Sixteen Americans embark on a once-in-a-lifetime journey through the treacherous New Zealand Alps in an attempt to reach the peak of a mountain in just 14 days in order to keep their share of the $1 million prize they're carrying in their backpacks.

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.

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 trekkers struggle with the arduous terrain, the division of alliances among them becomes noticeable. When the Mountain's Keeper observes the group's slow pace, she offers a proposition to help them stay on track to reach the summit in time.

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.

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 obstacle the group learns that they have broken a fundamental rule of THE SUMMIT .