At the opening ceremony of the WSG (World Sports Games) Tokyo Games, a sports festival held once every four years, it is announced that the world's first vacuum superconducting maglev with a maximum speed of 1,000 kilometers per hour will open. While attracting attention from around the world, top executives of large companies are kidnapped from the party venue where WSG tournament sponsors gather. Conan moves toward a solution and eventually finds a connection with the WSG abduction case that occurred 15 years ago in Boston, USA.

Com a ajuda de seu inseparável cachorro e de seus dois melhores amigos, o agente secreto Bernie Dingledorf é a única criança capaz de enfrentar um exército de palhaços, destruir o gerador de risada do Dr. Chuckles e salvar o mundo.

Running away from his actions, a desperate man confronts who he has become.