the scene opens with goku and vegeta Jr. trainig in ssj form

Goku Jr:hey you're pretty good

Vegeta jr:you're not half bad either

Mysterious voice:you both are good for your age

Goku Jr:who said that?

Goku:that was me, Goku

Vegeta Jr:who are you?

Goku:come with me and I'll explain everything

*they transport away*

????:Hmmm, there are no strong fighters here

*sense the past*

????:but there was a bunch of strong one's here before, lets just bring them back

*the sky turns black and ???? does a weird spell*

*The Z fighters appear*

Gohan:what's going on?

Vegeta:we were dead!

Piccolo:it's impossible for shenron to bring us back!

Goten(teen):why do we look so young

Pan:*at her home**looks in the mirror*what's going on?!

Trunks:what's going on, why are we young, why are we here

Krillin:*notices ????*I think that's the least of our problems.

Narrator:what's going on, why are the Z fighters back and who's ????? and where's goku with the Jrs, all these question will be answers next time!