Pokémon "The Legend of Dratini" (non-existent unaired English dub of anime episode; 1997)

Japanese version with English subtitles

The Legend of Dratini was a controversial episode of the Pokémon anime that aired in Japan in 1997, but was never broadcast in the United States. The episode was banned in many countries following a controversial scene, which included Ash being held at gunpoint. This, unsuprisingly, did not get past American censors, and thus did not air.

An English dub was made of the episode, backed by the original voice actors. Other dubs were in fact derived from the English version, yet the dub itself has never surfaced. The Japanese version is available on YouTube, however. The closest to an English dub on YouTube is the Japanese version with English subtitles.