2 boys from the very same community but various social classes end up as boxer pilots in WW1. Jack Preston is an eager grease monkey, structure and also changing cars and trucks. David Armstrong comes from a well-off family. They are both in love with the very same female, Sylvia. Her heart comes from David but she does not let Jack recognize and plays in addition to his infatuation. On the other hand, Jack's neighbour, Mary, is deeply crazy with him however he just sees her as a friend. WW1 interrupts the romantic complexities as Jack as well as David enlist in the US Army Air Solution (Air Service of the AEF at the time). They are initially bitter opponents, because of them both vying for Sylvia's loves. In time, nonetheless, they end up being excellent close friends. They are both posted to the very same boxer squadron in France, where being a competitor pilot implies daily could conveniently be your last.