A series of cryptic text messages leads Conan, Ran and Kogoro to believe that a small boy may have been locked inside a car by accident, forcing them to rush to find him before the heat kills him.
During a quiet day at the office, Kogoro gets unexpected help from Eri's Russian Blue cat in deciphering a strangely encrypted text message for a client.
Yumi and Takagi disguise themselves as a bride and groom to catch a serial killer targeting the couple, but it appears that the killer has already infiltrated the wedding disguised as a guest.
Conan, Agasa and the Junior Detective League go to the premiere of a new entry in a sci-fi movie saga. However, another enthusiastic fan they meet behaves strangely, making Conan suspect that he has something deadly planned.
A writer thinks he's gotten away with killing his secret ghostwriter and stealing his private work, but a stray baseball puts him in the sights of Conan and the Junior Detective League.
