The third and final series in Dragonball is the Piccolo Daimao Series:
After the 22nd martial arts tournament, one which Goku gets second and Tenshinhan gets first, an old enemy of humanity comes back again to scatter darkness on Earth, his name is Piccolo Daimao. He has no idea of his opponent, Goku, and how stong he is. Goku's first encounter is with Tambourine (one of Piccolo's henchmen), because he murders Goku's best friend Kuririn, and later with Timbal (who ends up being eaten by Yajirobe), and Drum (the demon that goes up against Tenshinhan).Piccolo, after facing and defeating Goku, wishes eternal life by the dragon, Shenlong, who is then eliminated. Piccolo also kills Master Roshi (in an attempt to trap Piccolo with a technique that Roshi's Master had done before), and Chaozu. After Goku was not able to keep up with Piccolo, he goes to the sacred tower with his new friend Yajirobe, and drinks the sacred water, and his powers increase. Tenshinhan faces Piccolo and tries to do the technique that Master Roshi had tried before and also fails and is almost killed, but Goku comes right in the nick of time. After a hard battle, Goku wins, but as Piccolo dies, he leaves an egg that contains his son and which is supposed to avenge his death.
Goku wants to revive his dead friends, but can't since Piccolo had destroyed Shen Long. So he goes to Kami's island to ask Kami-sama for help. It turns out that Kami-sama is the good part of Piccolo. Kami-sama revives Shenlong with the help of Mr. Popo (Kami's assistant). Shenlong is revived and Goku gets his wish (to revive his friends). But it turns out Goku can't see his friends until another three years in return of reviving Shenlong. Goku agress to stay and train with Kami-sama for three years, until the next tournament where he is to face Piccolo's son. After the three years of hard training, Goku enters in the 23rd Tenkaichi Budokai Tournament. The finalist include, Kami (Kami-sama disguised), Goku, Chi-Chi (Goku's future wife and an old friend), Tenshinhan, Kuririn, Yamcha, Tao Pai Pai, and of course Piccolo Jr. The first matches are Tao Pai Pai vs. Tenshinhan (Tenshinhan wins), Yamcha vs. Shen (Shen wins), Kuririn vs. Piccolo Jr.(Piccolo wins), and Goku vs. Chi-Chi (Goku wins). Then it is Tenshinhan vs. Goku (Goku wins) and Piccolo vs. Kami(Piccolo wins). The two final finalist are Piccolo Jr. and Goku, and after a long hard battle Goku wins his first tournament. Chi-Chi and Goku get married and have their whole life ahead of them...
