Prologue - Prelude to the End
Over the course of Dragon Ball history, battles were raged that decided the fate of it's Universe. From the invasion of the Saiyans on Earth, to the battle against the Intergalactic Tyrant Frieza on Planet Namek, to the appearance of the Androids on Earth, to the fight for the fate of the Universe against Majin Buu on the Supreme Kai's Planet, and even the arrival of Beerus, the God of Destruction on Earth. These battles and iconic moments set the timeline of their Universe, and forged mighty warriors. But someone sought to destroy that balance...
A unknown power is at work, changing the timelines to fit the villains of the story. Making the forces of evil more intelligent, more powerful disrupted the balance, causing a distortion in time and began changing so much.
Throughout the main fights of History, our brave heroes could feel immense power coming from their opponents, as it was evident from the dark purple flames burning out of them, and their eyes a glowing red.
"What?! That's impossible! I didn't think Frieza had this kind of power!" Goku exclaimed, as Frieza was the first to feel the new power. "Isn't it obvious? You're just a monkey, Super Saiyan or not! Now you will die, with the rest of your pathetic race!"
Further ahead in the timeline we experience the second major change in the timeline, as Cell dived out of the way of the Father-Son Kamehameha Wave. "W-what?!" Gohan exclaimed in shock as Cell also began to glow in the dark aura, as he chuckled. "Ah ha. This power is incredible! Alright then Gohan, let's see what you are made of now!"
Even further ahead in the timeline, we have the fight against Majin Buu in their kid form. Goku had finally managed to gather enough energy for the spirit bomb thanks to the aid of Vegeta and Hercule. "Maybe you'll come back someday as...as a better person, I hope. I'd like that. Perhaps we'll have a little one on one." He exclaimed as it landed on Kid Buu. However, he now experienced the new energy change, and kicked it back towards Goku. "W-What?!" "How?!" Vegeta and Hercule exclaimed as Goku had to bail from the blast immediately.
At the time-city of Toki Toki, the Supreme Kai of Time and her Time Patroller, Trunks, were overseeing the changes of History from inside the time nest.
"What are we going to do? You can't possibly stop the change in time by yourself, Trunks. Not while said changes were very significant like they are."
"You're right. There's too much at work, too much happening at once. I'll have to use the Dragon Balls."
"What are you going to use them for? You do know you can't just wish to be stronger, you know."
"No. Not just me. I'm going to call for help. And not just from our time, beyond the Multiverse bounds."
"Good luck, Trunks! It's up to you and your warriors to safe us once more!"
And with that, Trunks gathered the Dragon Balls and arranged them onto a pedestal, and summoned the Eternal Dragon, to which he needed to help correct the course of history.

"You have summoned the Eternal Dragon. State your wish and I shall grant it."
"Give me a strong group of allies. People with the kind of power to help me defend time itself! This I ask of you Shenron!"
"Your wish is granted."
Shenron boomed in power, as he granted Trunk's wish, sending a wave of energy from the pedestal as he called upon 9 mighty warriors to Trunks.
"Someone has summoned you from a far away Universe." A voice would ring in these people's heads. The voice was loud, and had a booming deep voice to it. "Brave Warrior. Come!" Then the people called would feel a serge of energy building inside of them, with a light burning out of their bodies as they could feel their very body disappearing.

Once they had been fully teleported, they arrived at a floating platform with plenty of greenery as well as uniquely designed ground, walls, bridges and creations; with a martial arts like appearance. Then a boy would start walking towards them, giving a confident smirk.

"Strong Warriors. Welcome, to Toki Toki City. I'm Trunks, pleased to meet you all. Our situation is very dire right now, and we need your help, all of you, to correct the course of history."
Cast:
@dark As Domon Kasshu "King of Hearts" (G Gundam)
@thatguyinthestore As Lamar Davis (GTA)
@ThatAverageGuy As Fluttershy (My Little Pony)
@Riz Faber As Shego (Kim Possible)
@Jeremi As Stardust (Marvel Comics - Earth-616)
@Takumi As Lucina (Fire Emblem Heroes)
@Sen As Karanbora (Dragon Ball OC)
@Kaykay As Minowa Gin (Washio Sumi is a Hero)
@Crow As Benjamin Kirby "Ben" Tennyson (Ben 10. Shares memories of the Convergence Group's Ben Tennyson)