The Shack - Movies--(PG-13)--Based on the New York Times best-selling novel, The Shack takes us on a father’s transformative spiritual journey. After a family tragedy, Mack (Sam Worthington) spirals into a crisis of faith, and questions God’s existence and life’s purpose. Mack is unable to move on until he gets a mysterious invitation to an abandoned shack. There, God reveals Himself in the form of three strangers led by Papa (Octavia Spencer). Mack’s journey will transform audiences of all ages, in this movie that you will want to watch over and over.