Eccentric inventor, Caractacus Potts, sets about restoring an old race car with the help of his children Jeremy and Jemima. They soon discover the car is magic, and has the ability to float and take flight. When the evil Baron Bomburst desires the magic car for himself, the family joins forces with Truly Scrumptious and Grandpa Potts to outwit the dastardly Baron and Baroness and their villainous henchman, the Child Catcher.