Thirteen-year-old Maria Mitchell, known to all as Ria, and her friend Lydia have been assigned to write a report on a hero or heroine of the Great War (World War I) for a school project. Instead of picking some well known figure, the two friends decide to search for someone forgotten or unknown. When asked to help, Emma Mitchell, Ria's Mom, brings out old letters she and a cousin wrote during the war. The girls are sure the letters hold the key to their success of finding a forgotten hero! But will they? It that all that these letters bring to light? Join Ria and Lydia, Mrs. Mitchell, an old neighbor called Corporal, and others as they re-live the years of home life during the war.