The series starts "1,000,00 years before earth" in the Pre Namekian era on Namek. Guru is shown as a kid with his father playing what appears to be a game of catch. Guru wins the game, at the same time as a mysterious cold appears. All the Namekians flee but the cold kills them all... all except Guru who managed to find shelter inside a house. The story then fast forwards to merely 152 years ago, when Kakarot(Goku) was born. The rest of the story is Goku's childhood.