One of the greatest mysteries of the Soviet era remains the Dyatlov Pass Incident. Nine experienced hikers try to conquer the challenging "Dead Mountain" trek in the middle of winter. When they fail to return, a search party is dispatched to the remote Ural Mountains only to discover a bizarre and tragic scene. Their bodies are located one by one: scattered, broken, and strangely irradiated. Most of their clothing and supplies were left inside the tent, which also appeared to have been cut open from the inside. Was it a meteor impact? Foul play? A Soviet weapons test gone horribly wrong? Or perhaps something different altogether?
Eichar scours the journals and photographs left behind by the ill-fated hikers for answers along with autopsy reports, eventually offering new insight to what might have happened that frigid night on Dead Mountain.