Dragonball comes before Dragonball Z and Dragonball GT. A young boy named Goku is on an adventure with his friends, Bulma, Yamcha, Tien, Chi-Chi, Krillin and many more to look for the Dragon Balls which grants wishes. Goku always saves the world even if he's just a young boy. Goku was so powerful because he is one of the extinct saiyans!