In an attempt to raise 30 shillings so that the children can purchase a dilapidated racing car from a junk dealer, Potts tries to sell his latest invention, whistling sweets, to Lord Scrumptious, the owner of the local candy factory.
Caractacus Potts is a woefully unsuccessful inventor who lives in an Edwardian mill house with his two small children, Jemima and Jeremy, and their eccentric grandfather.