After the abduction and assumed death of Mackenzie Allen Phillipu0026#39;s youngest daughter, Missy, Mack receives a letter and has the suspicion itu0026#39;s from God asking him to return to The Shack where Missy may have been murdered. After contemplating it, he leaves his home to go to The Shack for the first time since Missyu0026#39;s accident and encounters what will change his life forever.