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Experienced climbers Rachel Kelsey and Jeremy Colenso are in the Swiss Alps descending the Piz Badille Mountain when they are caught up in a terrifying electrical storm. Anchored onto the mountain with their metal climbing equipment, Rachel and Jeremy have become human lightning conductors. They have a heart-stopping dilemma - risk it all climbing down through the storm or spend the night on the mountain, where temperatures dip to -20.
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