Mountains in the heart of Russia but never made it out alive. Investigators have never been able to give a definitive answer behind who – or what – caused the bizarre crime scene. Fifty-five years later, American explorer Mike Libecki investigates the mystery – known as The Dyatlov Pass incident – but what he uncovers is truly horrifying. Based on diary accounts, forensic evidence and files that have just recently been released, Mike pieces together the graphic stories in search of what really happened that evening.

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