As the trekkers hit the halfway mark, a divide in pace emerges within the group; the group learns that they have broken a fundamental rule.
The group faces a daunting chasm known as King's Leap, which they must cross by pulling themselves to the other side using a single rope.
The final four trekkers reach an impassable chasm at the peak of their journey; the eliminated members return for a pivotal role.
The final seven confront a new phase, an icy glacier, the Mountain's Keeper arrives with the necessary gear but it comes at a cost.
Tensions rise among a trusted alliance; the trekkers must cross an alpine lake by kayak then pass a massive chasm to get to the next camp.
