Five American college students travel to Ural Mountains in Russia to find out what really happened during the Dyatlov Pass incident, where nine skiers died under mysterious circumstances. They themselves also disappear, and the video footage that they shot during the venture later surface online.
This film has examples of:
- Abandoned Area: After arriving in the area of the incident, the group discovers a door to an abandoned bunker. Later they have take refuge there, and discover an Abandoned Laboratory within.
- The Backwards Я: Used in the end credits. One example is presenting the director credit as "Diяected by Reииy Harliи".
- Cavalry Betrayal: After surviving the avalanche, the group fires a flare to get help. The "help" arrives as two men who starts firing at them when they get near enough.
- Chain Pain: Holly momentarily drives away the two creatures menacing her and Jensen by swinging a chain at them.
- Foreshadowing: While the crew interviews Alya, the woman who was among the first people to discover the original nine victims back in 1959, she mentions that there was also two strange extra bodies present with a strange device next to them. These two bodies are later revealed to be Holly and Jensen who had been transformed by their Time Travel trip through the teleporter, and the device next to them was the camera that they had with them.
- See also: Meaningful Background Event.
- Male Gaze: When introducing Denise, the boom mic operator, JP uses his camera to zoom on her chest while mentioning her physical attributes for the job.
- Meaningful Background Event: About a half-hour into the film, during a conversation between Holly and Jensen, an indistinct pair of figures appears in the distant background for a few seconds, loping across a hill. These are likely their future, monstrous selves following the expedition.
- Playing with Syringes: The contents of the bunker suggest that the Soviet military was experimenting on their own troops, sending them through the time rift and then executing the resulting freakish monsters.
- Rewatch Bonus: The first time you hear J.P. scream Holly's and Jensen's names as he's being attacked by the creatures, it's alarming because they're tearing him up. Upon re-watch, it's a lot more disturbing if you catch on that he might've realized it's his own monstrously-transformed friends who are killing him.
- Riddle for the Ages: No explanation for the Real Life deaths of the 1959 skiers is ever settled upon. The strange events faced by the current expedition are explained (see Twist Ending), but the creatures that menaced the film students didn't arrive until after the original nine Russians were dead.
- Stock Unsolved Mysteries: Inside the bunker, the three members of the remaining cast come across photos regarding the Philadelphia Experiment, which shows the crew of USS Eldridge (the ship involved in the experiment) being fused with the ship's inner workings due to its supposed teleportation experiments.
- Teleporter Accident: The two creatures encountered by the cast are results of teleportation experiments gone wrong, that are being contained inside the bunker.
- Tentative Light: The decades-old light bulbs in the bunker keep flickering on and off, and one tunnel goes completely dark just as the students enter.
- Tongue Trauma: The group come across a long unused weather station on their hike to the pass, and find something that they think is a cut tongue inside it. When the remaining cast get inside the bunker, they find the tongue's dead owner laying on a slab. Also, when Holly's recounts how the 1959 hikers' bodies were found, she mentions how one woman's oral cavity was severely damaged, including a missing tongue.
- Toplessness from the Back: One DVD cover for the film has a naked woman in the middle of the snow, with her back turned to the viewer. Guess when this happens in the movie...
- Twist Ending: After Holly and Jensen take the blind jump into the teleport near the end, they end up in the year 1959, and the final shot of the film shows that they became the creatures that terrorized them inside the bunker.
- Villain Teleportation: The mysterious elongated footprints appear in clusters at the camp and weather outpost, with no tracks leading in or out. The footprints' feral makers that used to be Holly and Jensen are later revealed to have this power, as when Holly swings a chain at the female and her target vanishes before being struck.