Detective Conan: Private Eye in the Distant Sea

The Aegis Destroyer is holding public training exercises in Maizuru Bay-around the same time a mysterious foreign ship was seen in the area. Conan Edogawa, Ran Mouri, Kogorou Mouri, Sonoko Suzuki, and the Detective Boys all get tickets to watch the event. But during the maneuvers, a crew member stumbles upon a lieutenant's severed left arm. Conan soon realizes a foreign spy may have snuck aboard the warship to steal classified information at any cost. If the secrets get out, Japan's defenses could be compromised, leaving the country vulnerable to attack. As the police assist at sea and allies gather clues on land, Conan races to stop the spy and avert a national disaster before it's too late.