A chance meeting on a foggy London street presages the sundering of an inseparable bond during World War One in this pre-Code wartime romance. Jack Ingleside (Douglas Fairbanks, Jr.) is on his way to meet his literal brother-in-arms Tom Ingleside (Anthony Bushell) in a pub when he bumps into an attractive young woman (Rose Hobart). Not realizing the young lass is his childhood nemesis Molly Prescott, Jack finds his charms rebuffed with the promise that he will see her soon. "Soon" comes in the form of his and Tom's final weekend leave (they've finagled being posted to the same cavalry unit) at his mother's country estate. While sparks fly betwixt Jack and Molly, Jack discovers that Tom is also in love with Molly. Playboy Jack elects to step aside for the better man but the heart will out. While the triangle divides the brothers, director Allan Dwan serves up some truly striking multilevel war tableaus, full of trench and tragedy.