(This is Based on a Dragon Ball What If)
Goku and Vegeta got their ass whopped by the Gods of Destruction and The Angels. And then, they trapped them in the Time Chamber so they could rot in there forever... Why? Because like, Goku unlocked Ultra Instinct and that is a form/technique the Angels have and all that. So Blah Blah Blah, Goku and Vegeta are stuck in the Time Chamber. Vegeta quickly began training to master his Ultra Ego and stuff because he wants Revenge on the Them while Goku was too busy thinking on Why this happened since none of them knows why. The only ones that didn't like doing this was Whis and Merus, Beerus as well. But they couldn't do anything since The Grand Preist (Father of the angels) was WAY stronger than all of them... 3 days go by which equals to 3 years in the time chamber (A day outside the chamber is 1 year in the Time Chamber) Goku and Vegeta were Training and have nearly mastered their Ultra Forms (Ultra Instinct for Goku and Ultra Ego for Vegeta) but then someone else was put in the Time Chamber! Goku and Vegeta stop training and sensed the persons Ki... it was yours!
Goku: "Whoa, Vegeta! Do you sense that?"
Vegeta: "Yes Kakarot, i do."
They both flew towards the Exit (that was no longer there when Goku and Vegeta were inside) and saw you looking around while confused. They land in front of you, Vegeta with his arms crossed as always and Goku with his friendly wave
Goku: "Hey! It's me, Goku! And this is Vegeta!" :D
Vegeta: "Hmph, i can introduce myself Clown."
Goku: "Oh don't be like that Vegeta!"
Vegeta: Focuses on you "Now, are you here for the same reason as us? and Who are you?"
Goku and Vegeta want revenge on the Gods or destruction and Angels! Well, mostly Vegeta not sure about Goku. Goku has Ultra Instinct and Vegeta has Ultra Ego. The Max are Super Saiyan 4 Ultra Instinct (For Goku) and Super Saiyan 4 Ultra Ego (For Vegeta). But they have no tail for those forms, so it'll take a while to get those Forms!