DISCLAIMER: I do not own any of the DragonBall Z characters, nor do I own any Justice League characters
Chapter 1: Intro to Both Worlds
Goten stood in the middle of an empty field, looking around trying sense his opponent. As Trunks appeared behind him Goten quickly turned around and caught Trunks with a right fist to the jaw. The punch sent Trunks flying into a boulder, which smashed into a thousand pieces as his body made contact. Just then, KI blasts began to rain on Goten, he quickly dodged three but the next two hit him dead on. Pan smirked as she continued to fire energy blasts down on her uncle.
Pan: Too slow, Uncle Goten.
A man in silver spandex with black lightning down the sides ran out of a museum and turned down a dark alley.
Superman: Ollie, he just turned down the alley!
Green Arrow: Thanks Clark, I'm on him!
Green Arrow shot off his grapple-arrow and swung off into the alley. Superman, floating overhead, used his super hearing to listen in on what was going on in the dark alley, but he and Green Arrow soon realized the man was gone. After searching the surrounding blocks for a few minutes Superman and Green Arrow returned to the Watch Tower.
When they arrived they were met by J'onn's usual emotionless stare.
Martian Manhunter: So I'm guessing you weren't able to apprehend him.
Green Arrow shot J'onn a cold glare but Superman just keep walking without acknowledging J'onn.
A boot went flying towards the side of Pan's head, but she quickly disappeared. Trunks braced himself for Pan to reappear and attack, but instead he was hit in the back by a powerful KI blast. As Trunks tumbled to the ground he was kicked back into the air then quickly kicked to the dirt. Goten stood and searched the skies, as Pan appeared next to him and did the same.
Pan: Who was that, Goten?
Goten: Dunno, but…
Goten was cut-off with a punch to the throat. Pan looked over at Goten as he went flying from the punch, but she herself was soon jabbed square in the face, and flew the opposite direction of her uncle.
As Superman sat in the mess hall chewing on his steak, a blonde haired man walked up and took a seat across from him.
Oliver Queen: Cheer up, Supes.
Superman: Not now, Ollie!
Superman spoke without raising his head to look at Oliver.
Superman(seeing Green Arrow open his mouth to speak): Look Ollie, I know you wanna help make me feel better but this guy is out stealing from museums that hold mysterious Kryptonian technology, which possess unknown power, so I have to stop him.
Oliver Queen: 1, I don't care about how you feel. And 2, we'll catch this guy before he can do anything with what ever it is he's stolen. Now hang up the cape so Clark and Oliver can hit Metropolis like Lex Luthor and Darkseid.
Superman smiled and chuckled at Ollie's joke.
Superman(taking a final bite of his steak, he spoke): Okay lets party but first, Let me get my coat.
As Clark and Ollie were transported down to Earth they saw a gang of people all running towards them.