Dragon Ball Z Kai

Long ago, Bardock, a Saiyan warrior died in an attempt to stop Freeza, a galactic tyrant who ruled over the vast reaches of space. But before Freeza destroys Bardock's home planet, one space pod seems to have escaped only moments beforehand. Kakarrot, Bardock's son, had escaped the planet's explosion and was sent to Earth to follow through with Freeza's orders of conquering it. Upon crash landing on Earth, however, Kakarrot is found by an elderly man, Son Gohan, who raises him as his own, naming him Son Goku. Years pass and Goku ends up serving as Earth's greatest protector, completely unaware of his Saiyan heritage. But it seems that Goku is not the only survivor of his home planet, as another Saiyan has reached Earth to remind him of his true purpose.

A stranger claiming to be Goku's older brother has kidnapped Gohan. Unable to defeat him alone, Goku is forced to team up with his enemy, Piccolo, in an attempt to rescue his son.

Unable to withstand Raditz's brute strength, Goku and Piccolo rely on Piccolo's latest technique in a last ditch effort. Will the makankosappo be enough to defeat Raditz or will a looming third fighter finally be enough to even the playing field?

With the battle against Raditz finally over, the Earth's fighters begin to train for the greater Saiyan threat to arrive within the following year.

As the year of training in preparation for the Saiyans begins, Piccolo is having more trouble than he anticipated as Gohan transforms into his Oozaru state on the full moon.

While Gohan begins to better survive in the wilderness in his training for the Saiyans, Goku finally reaches the end of Serpentine Road to meet Kaio--a rather peculiar master.

Goku continues his training under Kaio. His first challenge: catching Kaio's pet monkey Bubbles under 10 times Earth's gravity.

The year wait has finally passed, as the two Saiyans finally arrive to the planet. However, Kaio seems to have made a mistake in Goku's training which may mean either life or death for Earth!

The Saiyans have reached the planet and have encountered the fighters of Earth. However, instead of a direct confrontation, the foes unleash the Saibaimen, cultivated life-forms, on the fighters.