Dragon Ball Z is originally a manga series produced by Japanese Akira Toriyama, that created, written and illustrated it. Dragon Ball Z inspired movies and novels and also two anime series that were broadcasted in Japan since the middle of the 80s to the middle of the 90s. Dragon Ball Z was so popular that was later broadcasted all over the world and it inspired popular video games and all sort of merchandise with the popular characters.

The plot of Dragon Ball Z is based on the story of a monkey tailed boy – Goku who is friend of a teenager named Bulma. Goku and Bulma have to find together the seven Dragon Balls. Goku begins a training of martial arts with Master Roshi and while in training, he meets a Shaolin monk named Krillin, who at first is his enemy, but later they became friends. In the series, Goku has to face several villains – Emperor Pilaf, Red Ribbon Army or Piccolo Daimao. Some of the villains in the story befriend later Goku – Yamtcha, Tien Shinhan, Yejirobe and Piccolo Junior, a reincarnation of Piccolo Daimao. In the plot of Dragon Ball Z we see how in early adulthood, Goku meets Raditz which is really his brother. Raditz tells Goku they are actually extraterrestrial and their race is called Saiyans.

Actually, the Saiyans send Goku to Earth to conquer it for them, but he was hurt and lost his memory. Because of his refusal to help Raditz, he battles just villains from space like Vegeta, who is first an enemy and later an ally. Frienza is an emperor that transforms Goku into a Super Saiyan and fights him. After a battle between the two, Goku wins and saves the lives of all creatures from his galaxy. Later in the story, Goku fights the former Red Ribbon Army and Cell in the Cell Games to save the planet. In Dragon Ball Z, Goku later fight Buu and defeats him. Buu reincarnates in Uub and Dragon Ball Z ends with Goku training Uub to be the next defender of the planet. Although full of action, Dragon Ball Z is a story of friendship and victory.