Specials

Specials

Main article: List of Dragon Ball specials
Four anime specials based on the series were released in Japan. The first, Bardock - The Father of Goku, was released on October 17, 1990. A prequel, it is set years before the start of the manga and details how Goku's father, Bardock, discovers that Frieza is planning to kill all the other Saiyans, and his efforts to stop him. The second special, The History of Trunks was released on March 24, 1993. Based on an extra chapter of the original manga, it is set in a parallel universe where most of the series characters are killed by a group of soldiers known as androids. A two-episode original video animation (OVA) series titled Dragon Ball Z Gaiden: Saiyan Zetsumetsu Keikaku and based on the Famicom video game of the same name, was released in 1993 and was set during Dragon Ball Z.[38] A Hero's Legacy, released on March 26, 1997, is set 100 years after the end of Dragon Ball GT. It features one of Goku's descendants who begins looking for the Dragon Balls in order to help his sick grandmother. The newest special, Dragon Ball: Yo! Son Goku and His Friends Return!!, premiered at the Jump Super Anime Tour in November 24, 2008. The special is set two years after the defeat of the Kid Buu and has Goku and his friends facing against new enemies, Avo and Kado, and meeting Vegeta's younger brother, Tarble.