Phil Mercedes (Dix), who was once a record-setting pilot, is an aging, alcoholic, aeronautics show performer. While inebriated, he crashes his stunt plane into a barn and is grounded for a year. His sister Kay (Barrie) is his only means of support, who hopes to land a job as a draftswoman for Martin Ames (Taylor), the chief engineer for Dan McLean (Lowe), an airplane manufacturer that hopes to win a big contract with the government given the war in Europe. Though Kay is not a very skilled draftsman, she shows Ames some drawings with creative designs, from Phil, that interest him. Preliminary tests of the aircraft prove disastrous, but Phil establishes the viability of his designs by flying the experimental aircraft himself, which restores his damaged reputation.