A mysterious man approached Kogoro with a request to travel to Yokohama, asking Ran, Conan, and the others to accompany him. Little did they know, it was all a sinister trap, as Ran and the Detective Boys were swiftly taken hostage. The man presented Kogoro with a case that needed to be cracked in just 12 hours, or else the bomb hidden within VIP passes at an amusement park, worn by Ran and the others, would detonate. To make matters worse, the criminal was aware of Conan's true identity as Shinichi Kudo. With Heiji Hattori caught up in the chaos as well, the stakes were higher than ever before.