The police department receive a ransom demanding a large sum for Ran's life. The police send their men to search around town for Ran. Conan and Haibara soon deduce from Ran's description of her location. Once there, the Detective Boys are able to save Ran and apprehend the two kidnappers. However, it is revealed the third kidnapper is planning to murder the announcer for a Tennis match. Conan informs the police and they are able to persuade the murderer to surrender peacefully.