In the version that is shown on YTV in Canada, the story begins mid-way through the Dragon Ball Z series. Raditz, Goku's brother has traveled to Earth to find out why Goku has not yet destroyed the planet as he was supposed to do. But while as a baby, Goku was dropped (down a huge cliff) and forgot his real mission. Kakarot, Goku's real name battles his brother Raditzs along with former enemy Piccolo and friend Krillin. Meanwhile, Gohan; Goku's son reveals his hidden powers against Raditz and nearly kills Raditz. However Goku is killed in the end, but Raditz is eventually defeated by Piccolo. Before he dies, he tells them that two evil Saiyans even more powerful then he is, are on route to Earth. The remaining fighters, Krillin, Yamcha, Tien, and Chiaotzu begin their training to battle the evil Saiyans, while Piccolo takes off with Gohan to train him in using his new found power. Meanwhile, Goku has to make his way back on Snake Way to King Kai's where he trains himself in the secret ... Written by dreamian
Goku is struggling to move under the gravity of King Kai's planet when King Kai shows up. Goku begins his training by trying to catch a monkey named Bubbles.
Piccolo, Gohan, and Krillin do their best to stop the Saiyans from finding the Dragon Balls. Meanwhile, Goku rushes back to Earth on the Flying Nimbus, armed with more power than ever before!
Piccolo makes the ultimate sacrifice to save Gohan from the rampaging Saiyans. Just when all seems lost, Goku returns to Earth with an incredible new level of power and confronts the invaders.
Locked in battle with the Saiyans, Goku gives Nappa a brutal demonstration of the training he received from King Kai. Broken and defeated, Nappa must now face the ferocious wrath of Vegeta!
Goku decides to take on mighty Vegeta all by himself! The two appear evenly matched, but both are hiding their true strength. The epic battle is underway - which mighty warrior will claim victory?
Vegeta and Goku continue trading brutal blows, but the action intensifies when Vegeta reveals the secret power of the Saiyans: the ability to transform into a giant, planet-destroying ape!