When Kogorou Mouri receives an odd invitation, he takes his daughter Ran, Conan Edogawa, and the Detective Boys to Miracle Land amusement park. There, Kogorou and Conan are challenged by a shadowy figure to solve an unfinished mystery. Realizing the summons were a cunning snare, they must crack the case within 12 hours or risk serious peril. Supported by familiar allies such as Heiji Hattori, Kaitou Kid, and Saguru Hakuba, the detective team must piece together a tangled trail of evidence to locate the perpetrator and deliver justice before time runs out in a world where danger lurks behind every turn, their determination must shine for sake of justice.