Meitantei Conan

Meitantei Conan (Detective Conan in English, Case Closed as licenced in the United States) is an anime about a 17 year old detective, Kudo Shinichi (Jimmy Kudo) who, after being drugged by the mysterious Dark Syndicate, physically reverted to being the 7 year old Edogawa Conan (Edogawa Conan).