War only separates friends if you let it. Boisterous 11-year-old aspiring singer Ruby Carol Rafferty's happy life in Seattle is turned upside-down after the Japanese attack Pearl Harbor in December 1941. Suddenly America is at war, Ruby's longed-for Christmas trip is cancelled, her father wants to join the Army, and her best friend Emiko is getting shipped away to a Japanese internment camp just because of her heritage. A new friend's family fled from the Nazis in Europe and can't find out what happened to the relatives they left behind. Ruby can't put a stop to everything that's happening, but can she and her friends keep a song in their hearts until the world comes back to its senses?