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Goku's Ancestors

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Goku's Ancestors (よみがえるサイヤ人伝説! 悟空のルーツ, Yomigaeru Saiya-jin Densetsu! Goku no Rutsu) is the twentieth episode of the Vegeta Saga in the uncut Dragon Ball Z series. The episode first aired on September 20, 1989. Its original American air date was January 17, 1997.



Goku's next challenge, Gregory

King Kai gives Goku his next assignment: to whack his personal assistant, Gregory, a giant, incredibly fast grasshopper, over the head with a massive weighted hammer.


The Saiyans and the Tuffles

He also relates to Goku how the Saiyans, who had wiped out the only other humanoid race on Planet Vegeta (called the Tuffles), had risen to acts of interstellar terror, clearing entire planets for resale to other races. They had since been driven to near extinction, and only four individuals survived the destruction of Vegeta.

When Goku learns of the evil heritage of the Saiyans, he flies off in a burst of light towards Gregory, focused only on hammering him. Two weeks later, he succeeds. Back on Earth, Krillin and the others complete their training at Kami's Lookout.


  • The events in this episode (including Gregory's existence) do not appear in the manga, and are mostly filler for the anime. Despite this, Gregory also appears in Dragon Ball Kai.
  • The part of the story stating that the Kami of planet Vegeta destroyed it would later be contradicted when it is later revealed that Frieza destroyed the Saiyan homeworld.
  • Goku is shown wearing a Battle Armor in this episode.
  • King Kai says that there is 70 days left before the arrival of the Saiyans, but in the previous episode he said that there was 88 days and it took Goku three weeks (or 21 days; according to the summary) to catch Bubbles and two weeks (or 14 days) to hit Gregory. 21 + 14 = 35. 88 - 35 = 53; there are 53 days left, not 70.


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