No Time Like the Present
With Raditz defeated and Goku gone from this world, the surviving Z Warriors must begin preparing for the arrival of two more Saiyans who will reach Earth in one year's time. Piccolo takes Gohan into the wild for a severe training program, in the hope that his hidden power will be revealed. Meanwhile, Goku embarks on a new adventure in the next world, as he must travel the endless miles of Snake Way to receive training from the legendary King Kai!
Aired 07/06/1989EP 6 - No Time Like the Present
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)