Its a story based on warriors from space named goku vegeta n all.
Goku is the lead hero. He was send to earth to destroy it. But in turn he becomes the greatest protector of earth.
With every new threats he becomes more n more powerfully to defeat the oppo. That dare to harm the planet.
Vegetable also joins the allies with goku n saves the planet. Dragon ball z is one of best anime to watch for. Freeza saga, cell saga, marjin buu saga are the best one. Goku transforms form ss to ss3. Gohan is badass in cell saga. Over all its a best anine till date beating even naruto.