Kogoro and Conan came to Yokohama according to a request from a mysterious man. But that was a trap of this man. Ran and the Detective Boys will be taken as hostages. If they don't solve the request of the man within 12 hours, the bombs attached to the hostages will explode. Furthermore, the man know that Conan's true identity is Kudo Shinichi. Also Hattori Heiji, the High School Detective of the West, and Kaito Kid enter the stage. Will they be able to solve the mystery within the time limit and save Ran and the others? And who in the world is the client?
Another great case featuring Shinichi Kudo aka Conan Edogawa. Although the case is a bit prolonged, its story and pace more than makes up for it. First off, a mysterious client asks for Mouri Kogoro (with Ran, Conan and detective boys) to meet at a hotel. There, they were given an electronic wrist strap as a vip entrance to a nearby theme park where they can ride anything for free - on condition that Mouri and Conan will stay and solve the case. It gets more interesting as the two meet up with Hattori and other detectives, only to discover that all of them are
in the same predicament -- solve the case or the people they love will die! Its a fast-pace adventure as both conan, hattori, and mouri (he's serious for once, aww) race ahead of time to save their loved ones in the theme park.