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Helicopters leave the eight explorers on a snow-capped summit. The men split into three groups and approach a 300-foot cliff, descend a ravine and traverse eight miles of the Triumvirate Glacier. Marty Raney, his son Matt and Brent Sass take a low ro... (more)ute and are the first to cross. Willi Prittie and the Seavey brothers cross far from the icebergs, across 33-degree water. Austin and Tyler bypass the glacier, traveling along the ridgeline. They arrive last and Austin's showing signs of hypothermia.