The Challenge: Everest - Episode Guide

Ben and Victoria prepare for their expedition through a series of grueling altitude tests and head to Nepal to begin the arduous trek to Everest Base Camp.

First steps on the mountain, negotiating perilous Khumbu icefall, deep crevasses on a flimsy ladder; altitude sickness causes a medical emergency and a heart-breaking decision.

It's summit day but an unexpected storm leaves climbers lost on the mountain. Worse is to follow as Ben's oxygen regulator fails in the notorious Death Zone - not once - but twice!