Join teenagers Peggy Prescott and her brother Roy as they embark on an exhilarating journey fueled by their passion for aviation, a legacy from their late father. With dreams of creating a revolutionary aeroplane, they breathe life into their fathers unfinished project and name it ‘The Golden Butterfly.’ Determined to enter a prestigious young aviator’s contest with a grand prize of $5000, the Prescotts find themselves in a race against time to save their home from the clutches of the unscrupulous banker, Mr. Harding. Alongside their best friends, Jess and Jimsy Bancroft, the siblings dive into a whirlwind of adventures that include a thrilling kidnapping, missing jewels, and encounters with some dangerous characters in their coastal village of Sandy Bay. With the skies as their playground, Peggy and Roy prove that the pursuit of dreams can lead to the most unexpected escapades! (Summary by Lee Ann Howlett.)