Vegeta: Goku has a reunion with his friends and introduces them to Gohan, his five year old son. However, a Saiyan alien lands on Earth to seek Goku. He introduces himself as Radditz, Goku's older brother, and asks Goku to join him in the Saiyan quest of universal destruction. But, when Goku refuses, Radditz kidnaps Gohan to blackmails Goku to kill innocent civilians. However, Goku remains loyal to Earth and decides to rescue Gohan through another method, by killing Radditz! Surprisingly, Piccolo allies with Goku and the first fight of DragonBallZ began. Piccolo decides to gather energy to do a super fireball on Radditz. Meanwhile, Goku stalls time. At the end, Goku puts his brother in a hold. At the advantage, Piccolo unleashes his fireball, which blasts and hits both Goku and Radditz! Krillan finds the fighters and laughs at the dying Radditz as he mocks him that Goku will be brought back to life through the power of the Dragonballs. Goku's brother replies that the device he uses to detect energy levels can also be used for communication. He sends the news about the Dragonballs to his two comrades, and dies. Because Piccolo discovered that Gohan had hidden powers when Gohan unknowingly head butts and damages Radditz, he kidnaps Gohan in an attempt to train him. Goku, rather than retiring in Heaven, is sent on a quest to run on Snake Way and to seek King Kaio to receive training for the upcoming fight with the Saiyan's. The rest of the Z warriors (Krillan, Yamcha, Tenshinhan and Chaozu) are gathered to receive special training from Kami. One year later, Napa and Vegeta (the evil Saiyan's) arrive to Earth. (But, they intend to find the Dragonballs to be granted the wish of immortality rather that to bring back the life of their unworthy comrade.) First come the battle against the Saibamen that Napa planted. The Saibamen fight, but are eventually killed by the team. (At one of these fights, Yamcha is killed.) After their defeat, our heroes fight Napa; Vegeta stands in the background and watches. In a series of battles, Chaozu dies as he sacrifices himself in an attempt to blow up Napa; Tenshinhan dies by using up his strength to try to kill Napa; Piccolo dies when he covers Gohan from Napa's fireball. Finally, Goku arrives and easily defeats Napa. Vegeta sees Napa's uselessness and kills him with a single fireball. As you all can guess, the remaining Z warriors begin to fight Vegeta. Goku begins to fight Vegeta. The odds are against Vegeta, so Vegeta creates a energy ball that substitutes the moon. Then, he turns into his full moon stage and turns into a giant gorilla. Our heroes get kicked around, but Vegeta later gets his tail cut off by Yajirobe. Goku donates energy from his Genki Dama to Krillan. This fireball hits Vegeta, but Vegeta survives. Meanwhile, Gohan's tail grows back. Gohan turns into his full moon stage and kicks Vegeta around. Later, Gohan gets his tail cut off by Vegeta and finally turns back into a little boy... landing right on top of Vegeta. Vegeta, weary and defeated, crawls to his space shuttle and leaves Earth as Krillan spears his life, so that Goku can fight him again.