Detective Conan: Kid in Trap Island

Also known as:  Meitantei Conan: Kid in Trap Island

In this single-episode OVA - released shortly before the anime film Detective Conan: The Lost Ship in the Sky premiered in Japan - Conan leads a group of young detectives against the phantom thief Kaitou Kid, who has his eyes set on a jewel at a hotel on an isolated island.

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Producers, official website and other details: AniDB, ANN, Wiki