Mitsuhiko, Genta, and Ayumi arrive at the Beika City farmer's market. Conan was unable to come due to something that suddenly came up. The Detective Boys happen to overhear a conversation between Kadokura, Yamawaki, and Kaori. The group is discussing the "explosive" time they're going to have, leading the kids to reason that they're plotting to bomb Inspector Megure, who is scheduled to deliver a speech at the event. The group of adults splits up and begins taking action. Genta follows Yamawaki, Mitsuhiko follows Kadokura, and Ayumi follows Kaori as they attempt to find evidence of their criminal activity, but...

Hanyu was found with a head injury in the Kagami Studio dome as though the statue of Talos had struck him. There are no signs the sculpture Genta placed in front of the service entrance was moved, making it likely the culprit is still inside. Conan believes the remotes used to control the dome's power are the key to solving the case. Later, Conan notices something strange about the ceiling of the dome and checks the photos on Ayumi's camera. The floating boat suspended from the ceiling has moved. Conan gradually closes in on the truth, and...