Dragon Ball Z: Saiya-jin Zetsumetsu Keikaku  

Dragon Ball Z: Plan to Destroy the Saiyajin, ドラゴンボールＺ: 外伝・サイヤ人絶滅計画, Dragon Ball Z: Plan to Eradicate the Saiyans, Dragon Ball Z: Plan to Destroy the Saiyans

Dr. Raichii is believed to be the last surviving member of the Tsufurujin race, which was wiped out by the Saiyajin many years ago. He now seeks revenge against Goku and Vegita, who are the only remaining Saiyajin alive. To achieve this, he has developed machines that emit destron gas, a substance capable of destroying all life on Earth. The Z warriors have 72 hours to locate Dr. Raichii and put an end to his destructive plans before it's too late.