 Five years after the end of "Dragonball", Son Gokû reunites with his friends, bringing along his four-year old son Gohan. Gohan is not like his father; he d rather study than fight. Raditz, a warrior from space lands on earth searching for someone named "Kakarot". He reveals himself as Raditz of the Sayans, the older brother of Kakarot! And Kakarot turns out to be Gokû! With two other Sayans coming to earth, can Gokû and the Z Warriors withstand the onslaught!?