Nine hikers set out for an adventure to hike the “Mountain of the Dead” in the cold Ural Mountains of Russia in 1959 and were never seen alive again. When they didn’t return on their appointed day…and then for days after…a search party was dispatched and what they found in the mountains would rack the brains of everyone involved for many years to come. Their deaths would be a mystery that stood the test of time and remains hotly debated to this day. What happened to them?