Diana invites Kogorou and Ran to London, but since Conan cannot travel with his invented name, Ai gives him a temporary antidote, letting him travel as Kudou Shin'ichi. Together with Professor Agasa they are on a plane to London.

Back in Japan, Ai now lives with Ayumi. Near their apartment, a suspicious man clothed in black named Kurokawa Youji has been trying to track down and now has found Ai. Shortly after Mitsuhiko notices a picture in a magazine of a foreign actress named Grace Aihara, who looks exactly like Ai, Conan calls, ominously instructing Mitsuhiko to keep Ai away from the Professor's house. And so, Mitsuhiko and Genta go about trying to protect Ai...

Shinichi has returned to Conan again. However Haibara had only given him two pills, he will have to figure something out. Gradually deciphering the note handed out by the criminal, Conan discovers that the place where he plans to attack will be at Wimbledon, where Minerva Glass is supposed to be playing. When they reach the stadium, the criminal has already entered, and since they do not have tickets, they stay outside. However, they can watch the game from a screen that is located outside of Wimbledon. Minerva appears to be losing.