Where or When, an absorbing love story which spans the years, is set in modern-day life of the Pacific Northwest and the closing years of World War One in Europe. Blaire Coolidge learns of her late great-grandmother Alice's unknown marriage to 1st Lt. David Reynolds, U.S Army Flying Corps, a young American aviator lost without a trace in 1918 during aerial combat over France. Alice's family objected to the marriage prior to David's departure for war-torn Europe, but deeply in love, they wed. Post war attempts by Alice to find her missing husband are futile and she returns home. With the aid of a German man, Blaire eventually uncovers an amazing revelation on the mysterious fate of Lt. David Reynolds.