Five Oregon college students set off to find out what happened to the nine hikers who mysteriously died in the Dyatlov Pass incident. Holly and Jensen are co-directors, J.P. and Andy are expert climbers, and Denise is the sound engineer. After the film introduces the characters, Russian-language news discusses the students' disappearance. The Russian government recovers video footage but refuses to release it to the public; hackers release the footage, which forms the rest of the film.