Dragon Ball Z: Saiya-jin Zetsumetsu Keikaku
English title: Dragon Ball Z: Plan to Eradicate the Saiyans
Japanese title: ドラゴンボールＺ: 外伝・サイヤ人絶滅計画
Alternative titles: Dragon Ball Z Gaiden: Saiya-jin Zetsumetsu Keikaku, Dragon Ball Z: Plan to Destroy the Saiyajin
Type: OVA
Source: Manga
Episodes: 2
Status: Finished Airing
Aired: Jul 23, 1993
Duration: 30 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Toei Animation
Licensors: Bandai
Genres: Adventure, Comedy, Fantasy, Sci-Fi
Demographics: Shounen

Dr. Raichii is the only Tsufurujin (the race eradicated by the Saiyajin many years ago) thought to have survived. He now is going to take revenge on the only surviving Saiyajin still alive, Goku and Vegeta. He uses machines that emit destron, a gas that will destroy all life on Earth. Now the the Z warriors only have 72 hours to find and destroy Dr. Raichii.

(Source: ANN)