On a trip to visit her grandparents in Japan, Tessa Miyata inadvertently releases the spirit of an evil samurai god who wants to destroy Tokyo, and stumbles upon a hidden part of the city where gods and mythological creatures walk among humans.

When the Kudo siblings visit New York City, their sightseeing plans are interrupted when a very special dress, the centerpiece of their aunt's fashion collection, goes missing, and Alex and Mika embark on a chase around the city to find it.

1944: As World War II rages on, the threat has come to the home front. In a remote corner of Idaho, Meiko Briggs and her daughter, Aiko, are desperate to return home. Following Meiko's husband's enlistment as an air force pilot in the Pacific months prior, Meiko and Aiko were taken from their home in Seattle and sent to one of the internment camps in the Midwest. It didn't matter that Aiko was American-born: They were Japanese, and therefore considered...