On Ishigaki Island, conflict brews over a large-scale bridge construction project. One day, Yajima (Sho Aoyagi), a public official from the Ministry of Environment, is sent to Ishigaki Island. Yajima announces to his colleagues that he is absolutely opposed to the bridge construction project and that he wil become a coral ranger who protects the coral reef there. This surprises his colleagues.
For 60 years, the group of detectives known as "Detective Office 5" has raised the bar for detective work. The agents of Detective Office 5 are a group of stellar detectives lead by the genius code breaker Detective 507. When an unknown client enlists 507 to crack his most difficult programming code yet, the detective embarks for Shanghai where he crosses paths with a sniper, an informant, the head of the Blue-Dragon Mafia, and beautiful singer on the run, Meilan. As 507 stumbles deeper into a twisted quagmire of intrigue he discovers the sad truth behind the mystery.
Shanghai, 1942. La ciudad está ocupada por los japoneses. La señora Mak, una mujer rica y sofisticada, recuerda cómo empezó todo en 1938. Su verdadero nombre no es Mak, sino Wong Chia Chi. Poco antes de estallar la II Guerra Mundial (1939-1945), su padre huyó a Inglaterra y la dejó en China. Era estudiante universitaria y conoció a Kuang Yu Min, que acababa de fundar una compañía de teatro para fomentar el patriotismo. Wong Chia Chi se convirtió en la primera actriz de la compañía. Kuang, por su parte, convenció a un grupo de estudiantes para que asesinaran al señor Yee, un importante colaborador de los japoneses. Wong Chia Chi colaboró en el plan haciéndose pasar por la señora Mak: su cometido era hacerse amiga de la mujer de Yee para ganarse la confianza de éste y seducirlo. Todo iba sucediendo según lo previsto, hasta que se produjo un acontecimiento inesperado.
Hana is a nineteen-year old expectant mother. She travels with her grandmother's ashes to her grandmother's house. Hana's mother, who gave birth to Hana when she herself was a teenager, now resides in the home. They are on the outs with each other, but are forced to stay with each other when Hana's boyfriend fails to show.
