Elodie

When a bored young socialite joins an all-women WWI motor corps in San Diego she learns how to drive ambulances and falls in love with her instructor.

The soldier leaves for the front where American troops join British and French soldiers fighting Germans. The lovers vow to write, but the mail is slow. She joins the Red Cross, an all-women French and British crew that call her "Yank".

The Spanish Flu descends on everyone, lurking on troop ships and adding to the terribly injured men.

With the Armistice in place, the girl and the soldier plan a reunion hoping their affection is strong and intact.