Vegeta Has a Ball
After saving Dende, Gohan and Krillin feel a large Ki and recognize it as belonging to Vegeta, who is attacking a village to obtain the Dragon Ball there. Dende learns why the others have come all the way from Earth, and begs them to help save his people. Elsewhere, Goku continues his training on his spaceship. King Kai speaks to Goku's mind, saying that Piccolo and the other late warriors have arrived on Kai's World asking for the same training Kai gave Goku.
Aired 06/06/1990EP 51 - Vegeta Has a Ball

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)