Dragonball Z was also created by Akira Toriyama and was about Goku but not only him. More characters and fighting were added. The good guys are Bulma, Kuririn, Gohan(Goku's son), Tenshinhan, Piccolo, Chao-zu, Yamcha, and a couple other guys. The bad guys were Raditz(goku's brother), Napa, Vegeta. There are alot of other good guys and bad guys but they are going to be in Part 2 and so on.

The story to this was that when Goku was a baby he was sent to Earth to destroy it but he got hit in the head and forgot. He grew up by Son Gokou (his grand father) and became nice person as well as a prize fighter. One day a Sajin arrived, his name was Radtz. He wanted to know why Goku didn't destroy the Earthlings. When Goku told him why he took Gohan and left. Latter Piccalo came and joined forces with Goku. They find Raditz and start to fight him. After a long time of fighting Gohan shot out of the sajin space ship and hits Raditz in the chest. He gits stunned and his armer cracks. Then he hits Gohan and nocks him out. Suddenly Goku grabs Raditz and holds him up. Piccolo charges up his Special Beam Canon and hits Raditz and Goku. They both fall to the ground and Raditz said that Goku was stupid. Piccolo explains that he can wish Goku back with the Dragonballs. What he doesn't know is that the scouter that Raditz was wearing was not only a power indicator but also a transmitter. Two other Sajins (Vegeta and Napa) hear the measage and set out to Earth. "They will arrive in one year and the funny part is they are much stronger than me" said Raditz. When Bulma, Crillan, and Master Roshi arrive Piccolo takes Gohan to train him. He saw the power that Gohan had and wants to help him control it. He takes him away and dropes him in a rural area to fend for himself.