Alone at the Top: Climbing Denali in the Dead of Winter

What goes through your mind when you’re dropped alone in the middle of the Alaska Range, the cold and darkness surrounding you without another human being for miles? Arctic explorer Lonnie Dupre had made a career out of working in teams to survive in extreme conditions and places most humans wouldn't dare to tread. But shortly after Dupre found himself alone after a twenty-year marriage, he decided he needed to summit Denali, the continent’s tallest mountain, alone and in the harshest possi...