Also involved in this trip are two Kazakh natives, Vlad and Slava, who the band have hired as guides, and Ambrose, who is researching for a book on caving.

It can also be said that there is a ghost with the group - that of Rachel, a member of the team who died on an expedition in Peru two years prior, and whose story is told in flashback as the movie goes on.

They awaken in the beast's lair naked and wrapped in animal skin blankets where they find photos, belongings and an airplane wing in the surrounding area.

The beast enters, and we discover he was the only survivor of a plane crash, a Russian boy called Peter.

Allmovie gave the film a mostly negative review, calling it "a dime-store copycat cave-horror flick that would be entirely forgettable if not for its shocking finale.