Goku's Ancestors
After Goku completes the first phase of his special martial arts training King Kai instructs him to bash Gregory with a hammer. Easier said than done. After an exhaustive chase, King Kai tells the story of the Saiyan race. Inspired, Goku resumes his training and eventually manages to put the hammer to Gregory. Impressed, King Kai agrees to train Goku personally. But will it be enough to stop the incoming Saiyan invasion of Earth?
Aired 20/09/1989EP 20 - Goku's Ancestors
Dragon Ball Z
Goku is back with his new son, Gohan, but just when things are getting settled down, the adventures continue. Whether he is facing enemies such as Freeza, Cell, or Boo, Goku is proven to be an elite of his own and discovers his race, Saiyan. He meets many new people, gaining allies as well as enemies, as he still finds time to raise a family and be the happy-go-lucky Saiyan he is.
(Source: Anime News Network)