Dragon Ball: Generations is a fan-fiction by Supreme Kuzon. It is about the generations in the Son-family; Bardock, Goku, Gohan, Pan, and Goku Jr., in their own complex stories. There is no story about Goku, as that is already shown in Dragon Ball, Dragon Ball Z and Dragon Ball GT. The beginnings of the lives of Gohan and Pan are also not shown as they already are in Dragon Ball Z and GT. For the story of the Child of Pan, read Ruben, the Father of Goku Jr., my own personal fanon. If you want to treat it as the actual canon story, then don't read it.