From her family's dusty farmland airstrip near Chicago, Cassie O'Malley would look at the planes shimmering in the moonlight and feel the pull of taking to the skies. Her First World War veteran father Pat wanted his son to be a pilot, not his reckless red-haired daughter. But her father's partner Nick, fellow air ace and airborne daredevil, was willing to break all the rules and teach her to fly.
When Cassie is invited to California to become a test pilot, her record-breaking flights soon make her a media darling. Risking her life, pushing herself to her limits, in a world preparing for the Second World War, she decides to chart her own course and pursue her own destiny, whatever it might cost her.