<P> Their honeymoon is cut short when World War I breaks out . John is also an army officer; he rejoins his regiment and goes to war in France . Susan and John's mother, Lady Jean (Gladys Cooper) must wait for news, good or bad . John's brother Reggie (John Warburton) is killed in action . John finally gets a chance to be with Susan for a few days in France, which they spend in Dieppe . During their stay, the United States declares war on Germany . </P> <P> Lady Susan returns to Britain and has a son, also named John . She, baby John, and Colonel Forsythe watch together as newly - arrived American troops parade through London . The war ends, but tragically, John is killed near the end of the fighting, never having seen his wife again, or his son . </P> <P> Susan and young John (Roddy McDowall) live in the Ashwood manor house with Lady Jean . Having inherited the baronetcy, he is addressed as "Sir John", even as a boy, and takes seriously his duties as proprietor of the manor . He develops a childhood infatuation with Betsy Kenney (Elizabeth Taylor), daughter of a tenant farmer . Young John invites two visiting German boys to the manor for tea . The German boys shock the Ashwoods by spouting bellicose militaristic sentiments . </P> <P> Susan becomes afraid that there will be another war, and that she will lose young John as she lost his father . After Lady Jean dies, she decides to sell the manor and take John to America . But when she tells him why, John refuses, insisting that he will go into the army as his father did, and fight for Britain if war comes . Susan changes her mind and they stay in Britain . </P>

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