A pilot on one of the air mail flights between France and its African colonies has a brief romance with his distressed cousin before he returns to the call of duty, and the rebels in the desert.
A one-night stand with an entertainer threatens to destroy a woman's marriage after she gives birth to a black child.
On his wedding day, Robert confesses his father-in-law that twenty years ago, he seduced a lady in a sleeping car of a train. His mother-in-law overhears the conversation and convinces Robert that she was that lady and that makes Robert's bride also his daughter. The wedding is in danger of being annulled when the trickery is finally discovered.
