Two soldiers, Sorbet and Tagoma, from Frieza's army, the former tyrant having been defeated by Son Goku on Namek, went in search of the Dragon Balls on Earth, in order to resuscitate him.
Once resurrected, Frieza's sole objective is to take revenge on Son Goku. He is informed that Goku has greatly grown in power and managed to defeat Boo. Frieza then decides to train for four months, claiming to be able to surpass him in this period of time...