Unknown Enemies
Vegeta defeats Zarbon and gains what he thinks to be the last Dragon Ball. But on his way to summon the Eternal Dragon, he runs into Gohan, who (unbeknowst to Vegeta) is reutrning with the seventh Dragon Ball. Meanwhile, a furious Frieza sends for the Ginyu Force to help him recover the Dragon Balls.
Aired 22/08/1990EP 58 - Unknown Enemies
1989
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)