9 hikers entered the snowy mountains. None returned.
In 1959, a team of experienced hikers began a dangerous expedition in Russia.
When the hikers failed to return, search teams launched a rescue mission.
Their tent was found ripped open from the inside.
Footprints led away into the snow. Some hikers were barefoot.
The bodies showed injuries that raised many questions.
Avalanche? Secret military tests? UFOs? No theory explains everything.
More than 65 years later, the Dyatlov Pass Mystery remains unsolved.