Outside of Denver, two young men begin to explore an abandoned old mine recently re-opened by a group of minors. When one of the men is discovered missing, his friends begin a search that leads them to horrifying consequences. They're all unaware of the evil that's been unleashed and, one by one, a monster that no one has seen snatches up the townspeople. Suddenly, the grisly truth is revealed and the couple is forced to confront the unknown in order to save their lives...and the entire town.
