The Disappearance of Conan Edogawa: The Worst Two Days in History
Genres: Adventure, Comedy, Mystery
Type: Special, Episodes: 1
Aired: Dec 26, 2014
Studio: TMS Entertainment
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
The anime special celebrates the 20th anniversary of Gosho Aoyama's original manga, and it recounts a previously untold story from Conan's past.

(Source: ANN)