Mackenzie Allen Phillips' youngest daughter, Missy, has been abducted during a family vacation and evidence that she may have been brutally murdered is found in an abandoned shack deep in the Oregon wilderness. Four years later in the midst of his Great Sadness, Mack receives a suspicious note, apparently from God, inviting him back to that shack for a weekend. Against his better judgment he arrives at the shack on a wintry afternoon and walks back...

After suffering a family tragedy, Mack Phillips spirals into a deep depression causing him to question his innermost beliefs. Facing a crisis of faith, he receives a mysterious letter urging him to an abandoned shack deep in the Oregon wilderness.