Naomi is a sheltered and beloved five-year-old when Pearl Harbor changes her life. Separated from her mother, she watches bewildered as she and her family become enemy aliens, persecuted and despised in their own land. Surrounded by hardship and pain, Naomi is protected by the resolute endurance of her aunt Obasan and the silence of those around her. Only after Naomi grows up does she return to question the haunting silence.