World War I aviator Carbot attempts to establish a commercial airline after the war, for the purpose of delivering the mail to the outermost regions of France.
Doña Maria de Guzman, a beautiful lady of Ronda has seen as Don Diego slapped his elderly father, disguised as a man pretending to be his brother (the expected return from Flanders) duels with him and kills him. Forced to flee, traveling in company with Don Juan, one of his fans, still hiding her...
