Mark Ashworth

Filmas paremtas tikrais įvykiais. Devyni kalnakasiai įstrigo dviejų mylių gylyje po žeme Apalačų kalnuose po metano dujų sprogimo. O deguonies jiems užteks tik valandai.

After receiving an unsettling voicemail, Jordan (Wiggins) returns home, looking for answers, only to find her estranged father and even more questions. A demonic force has attached itself to the town and no one is safe. The only one who seems to know anything is the small towns Reverend.