If and when the United States went to war against Japan, intelligence realized they had very few personnel that could speak the language or understand the culture, Including Japanese Americans. Their search of the universities throughout the US turned up very sparse results.
The decision was made to start a school to teach the Japanese language and if possible the culture of the isolated country to future code breakers. The Presidio, a military post in San Francisco was chosen to go forward immediately with the task.
The youth of American stepped up to the challenge, including an extraordinarily talented young lady, Sue Lee Ono. She was fluent in Japanese, German, Spanish, French, and understood several Chinese dialects. Sue Lee grew up in the city of San Francisco in Japantown under the tutelage of her dear Uncle Yoshi. He taught her not only the knowledge of the Japanese culture but a deep understanding of the history and artifacts. Uncle Yoshi was a collector and a known authority of Asian art.
Sue Lee settles into the routine at the Presidio helping to set up a school for Japanese Americans eager to do their part for their country against the ever-present prejudice.
Nevertheless, Sue Lee's worries are more than racism. She is caught in a murderous past continuing into the present after the death of her beloved Uncle Yoshi.