Richard is approached by a girl who asks him to track down Jimmy, claiming he used to be her girlfriend. When Conan and Rachel go with her to her house, they help investigate the disappearance of a pro soccer player's little brother.

During a game of hide and seek, Ayumi finds herself in the trunk of a car with a severed head and a bag of money, leaving it up to the Junior Detective League to track her down and catch the drivers.