Tyler is convinced by his girlfriend Sarah to take her on a camping trip with Tyler's stepfather and stepbrother Chase to try and renew the familial bonds. With tensions already running high between the estranged stepbrothers, the feuding is exacerbated by unusual sounds and strange news reports.
A therapist, won over by tales of abduction, absconds with his patient to a cabin in the mountains to document the phenomenon, but tangling with an otherworldly intelligence proves more dangerous than they could have ever foreseen.
