The story takes place off Tokyo's Bazhang Island, where the Pacific Buoy, a high-tech facility that connects police surveillance around the world, is about to be launched. Engineers from all over the world gather here in order to connect with the jurisdiction of Europol. A new "cool techs" based on face recognition is also being tested. At the same time, Conan and his party went to Bazhang Island to watch whales. On the way, Conan received a phone call from Hideichi Akai, who was told that members of Europol had been killed by gin in Germany. Conan sneaks into the Pacific Buoy to investigate the truth. Just as the engineers were preparing for the start of the system, a case suddenly occurred! A female engineer was kidnapped by the dark organization, and the flash drive with the core technology in her hand also fell into the hands of the dark organization! At this time, the sound of an unknown submarine approaching under the water was creepy, and a mysterious shadow was quietly approaching Asahara.