In the early hours of the 2nd February 1959, an expedition consisting of nine hikers and lead by 23-year-old Igor Dyatlov ended in disaster. The group had been camping overnight on a snowy hillside when something compelled them to flee from their tents and into lethal blizzard conditions, several of them in only a single layer of clothes. To this day, the exact reason for the flight which lead to their death is unknown.