In a bid to rescue her sister, Abby accepts a perilous assignment in the isolated wilderness of Georgia. After her helicopter goes down in the mountains, she clings to hope with the assistance of John, an enigmatic figure communicating with her via radio from a close distance. As he navigates her through the unforgiving environment, Abby battles to stay alive, all the while her sense of reality begins to waver, leading her to confront an unthinkable decision.