[Goku's tail is grabbed and is being beaten by his masked opponent]
Upa: [sobbing] Won't somebody help him?
Bulma: Cut the dramatics, Roshi. Who is he? Tell us!
Krillin: Who cares about him? Upa's right. We have to save Goku!
Yamcha: Master Roshi?
Master Roshi: We have no choice but to watch this play itself out.
Upa, Krillin: Huh?
Bulma: No!
Puar: Mommy!
Yamcha: Say what? Why?
Master Roshi: Because as hard as it is to accept, it isn't our place; the living have no jurisdiction here. The man Goku is fighting, he's not of this world. As impossible as this may sound, that masked man is really Gohan - Goku's deceased grandfather.
[Goku's friends freak out in shock]