The police has found one of the accomplices who took the bag of money the police put there. But then with the person's cell phone on, the other person hears what has happened and threatens to kill someone if the police doesn't let his accomplice go. The police releases him and the TV station was forced again to pay more money that was impossible to get before the soccer game ends. Conan realizes that this person has planned to kill someone in the first place and knows he has to find this person before one gets hurt! But with millions of people in the stadium, is it really possible to find this person before the game ends?

Kudo Shinichi is a seventeen year-old high school detective whom people call the "Modern Sherlock Holmes." However, one night after a date with his childhood sweetheart, Ran, Shinichi witnessed an illegal trade and, caught off his guard, was knocked unconscious and fed a drug that was supposed to kill him... but he woke up and found himself shrunken to a seven year-old. In order to track down the men who did this to him, Shinichi hid his identity and lived with Ran, whose father happened to be a hopeless detective, and with that came a series of murders and mysteries that he must solve.