A monkey-tailed boy named Goku is found by an old martial arts expert who raises him as his grandson. One day Goku meets a girl named Bulma and together they go on a quest to retrieve the seven Dragon Balls, mythical objects that can summon a dragon who will grant any wish. Along the way, they meet and befriend a plethora of martial artists. They also undergo rigorous training regimes and educational programs in order to fight in the World Martial Arts Tournament, a tournament in which the most powerful fighters in the world compete. Outside the tournaments, Goku faces diverse villains such as Emperor Pilaf, the Red Ribbon Army, a demon known as Piccolo Daimao and his offspring.