Also on his way to the top is 71-year-old Japanese climber Katsusuke Yanagisawa, who will be the oldest person ever to summit Everest if he makes it. He's moving well and before long he summits to the cheers of everyone at ABC.

But it's not over yet ... They've all got to get down.

Big Tim is still struggling down with his badly broken hand, which is so swollen he can't remove his glove. He's in extreme pain and to add to his difficulties he must use his broken hand to hold on to the safety ropes. Mogens Jensen is thrilled to have summited and has passed the most dangerous parts of the downward climb when everything suddenly goes horribly wrong. An anchor point for the safety ropes gives way and Mogens is left dangling over an 8,000-foot drop. His Sherpa hauls him to safety, but Mogens is badly shaken and clings to the rock face before summoning up the courage get moving again. "If it wasn’t for the rope, I'd be dead now," he says. "I tell you I almost crapped my pants."