Based on the Bestselling book by Philip Reeve, Mortal Engines tells the story of a dystopian future, where cities move on wheels across a barren earth. One day on London, a young, scarred girl named Hester Shaw meets with a boy named Tom Natsworthy, an outcast from London, and accompanied by the brave Anti-Traction League, must stop the villainous Valentine and an unfolding plot to destroy the world.