Detective Conan [Case Closed] - 

Episode 001-130 + Movie 1-6 [English Dubbed] + 
Episode 131-260 + Movie 7&8 [English Subbed]  

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http://www.animenewsnetwork.com/encyclopedia/anime.php?id=454
Alternative title:
Detective Conan
Detektiv Conan (German)
Detektyw Conan (Polish)
Detetive Conan (Portuguese)
El Detective Conan (Spanish)
Meitantei Conan (Japanese)
Детектив Конан (Russian)
المحقق كونان (Arabic)
名偵探柯南 (Chinese (Taiwan))
名探偵コナン (Japanese)
명탐정 코난 (Korean)

Genres: action, adventure, comedy, drama, horror, mystery
Themes: detective, police

Age rating: Teenagers (May contain bloody violence, bad language, nudity)

Plot Summary: 
Kudo Shinichi is a seventeen year-old high school detective whom people call the "Modern Sherlock Holmes." However, one night after a date with his childhood sweetheart, Ran, Shinichi witnessed an illegal trade and, caught off his guard, was knocked unconscious and fed a drug that was supposed to kill him... but he woke up and found himself shrunken to a seven year-old. In order to track down the men who did this to him, Shinichi hid his identity and lived with Ran, whose father happened to be a hopeless detective, and with that came a series of murders and mysteries that he must solve.