Aki Asano, the weather girl for the local news, leaves a message for Kogoro's assistance. Kogoro is away because of business so the Detective Boys go instead to discover Aki has been getting threatening letters. Conan gives Aki his pager number just before she receives an urgent phone call and asks the Detective Boys to wait for her. She does not come back, but Conan begins to receive numbers as messages from her on his pager including the emergency telephone number. With a hint from Ran and Genta, Conan is able to decode the messages and pinpoint where Aki is and apprehend the kidnapper.