"Vengeance is mine," saith somebody.... I'm sure I read it somewhere. That's what this is all about. We are in the desolate Australian Outback ten years after "the global collapse" (shades of "The Road Warrior"), where director David Michôd ("Animal Kingdom") working from a story by Joel Edgerton (better known as an actor "The Great Gatsby") generates a grim, sweaty ordeal with premier performances from his two lead actors.