England of the 1860s receives a technological remake in this animated adventure. Ray (Anna Paquin) is a brilliant young inventor who follows in the footsteps of his father, Eddie (Alfred Molina), and his grandfather, Lloyd Steam (Patrick Stewart). After his grandfather sends him a mysterious mechanical ball that contains revolutionary power, Ray finds his world turning upside down. It seems a lot of people want that power, and not all of them have good intentions.