Disclaimer: I do not own Dragon Ball, Justice League, their characters, or anything related to these franchises.

Note: This is set after the end of the Justice League Unlimited and after the Buu Saga for DBZ. I'm ignoring the part in the Justice League ending where Darkseid and Lex Luthor vanish. Also, Darkseid is not Brainiac enhanced anymore. So Darkseid, Lex and Brainiac are still around.

Chapter 1

Morgaine le Fey walked through the halls of the old castle. She entered a room where an old man sat in a chair. Her son Mordred had broken his mother's spell of eternal youth. Now here he sat as an old man unable to care for himself. Morgaine had found a way to restore Mordred's eternal youth to him. After tracking down a magical crystal she had stolen it and was ready to make Mordred young again.

"Wait no longer, my child," Morgaine said to her son. "Soon, you shall have your youth back." With that she activated the crystal's power, causing Mordred to glow. Seeing Mordred start to regress in age Morgaine pushed even harder causing the crystal's power to increase in intensity. Suddenly the room became filled with electricity. It was then a blinding light filled the room. As quick as it had come the light faded. After a few moments for Morgaine to regain her sight she saw Mordred was no longer in his chair and the crystal was gone.

"Mordred!" she called out with no answer. She then searched the castle only to find no sign of her son.

- Metropolis -

A boy was lying face down in a park. He began to stir and opened his eyes. He got to his feet to look around only to find unfamiliar surroundings. Just what happened and where was he?

It was at this time Clark Kent; a reporter for the Daily Planet was walking through the park when he spotted the boy. The strange thing Clark notices right off the bat was, this boy had a tail. O-kay, so this was a new one. "Excuse me," Clark said getting the boy's attention.

Turning around the boy saw the tall man in glasses walking toward him. "Are you okay, do you need some help?" Clark asked him, "What's your name?"

"I'm Goku," he said with a grin "What's yours?"

"My name's Clark Kent" after trying to think of a good way to ask this he finally added, "You're not from around her are you?"

"I don't even know where here is, what city is this?" asked Goku.

"We're in Metropolis, are from anywhere near here?" Clark asked.

"I've never heard of Metropolis actually," Goku told him before his stomach growled like a wild animal. "Man I'm hungry, do you know where I could get some food?"

"Sure, why don't you let me buy you something and we'll see if we can't figure out what to do with you," Clark offered.

"Gee thanks, that's nice of you. Let's Go!" Goku exclaimed excited.

"Um, before we go I have to ask, why do you have a tail?" Clark tried to be as non-offensive as he could.

"My tail?" Goku haven't noticed before looked to find his tail had returned. "Hey my tail's back, how about that."

"So, I take it you've always had a tail?" Clark asked.

"Well, it's been a while since I had my tail. I thought I got rid of it for good. Oh well, guess it's just back then" Goku said laughing.

Clark was amazed at how cheerful this boy seemed to be. He seemed almost innocent. It made him feel good to see. "Well, if you want to go get that meal now we should go. Although, you might want to do something about that tail first."

"Why?" Goku asked curiously.

"Well, people don't normally have tails. If you walk around with that tail hanging out people are going to be staring at you. They might get a little freaked out," Clark explained.

"People staring don't really bother me. When I had my tail before, I walked around all the time with it. I'm not trying to freak anybody out, but why should I hide who I am. It just seems silly to me" was Goku's response.

Clark was again surprised; he had struggled for so long to hide whom he really was. When he was in Smallville, but more now that he was in Metropolis and Superman. But this boy was so open about who he is. If anything this peaked Clark's interest more. "Are you sure Goku? People find it hardest to accept the things they don't understand."

"I'm sure, everything will be fine. Can we go eat now, please?" Goku asked grabbing his stomach.

Letting out a chuckle Clark simply nodded and they were on their way. They ended up at a diner where they were now ordering their meals. The sheer amount Goku was ordering made Clark's eyes widen. "Are, Are you sure you can eat all that Goku?"

"If anything this is a light dinner for me" he simply said.

"A light dinner, I'd like to see how much you usually eat" Clark laughed. "So Goku, how did you end up in the park?"

"I don't know, I was in the middle of training when I blacked out. When I woke up I was in that park" Goku told him.

"Training, for what exactly?" asked Clark.

"Fighting, can't let myself get lazy can I?" Goku laughed.

"Oh, so you're a fighter then, what kind of fighting?"

"Martial Arts, although I can't seem to figure out why I'm a kid again" Goku finally admitted.

"Huh, what do you mean?" Clark was now raising an eyebrow.

"Well I'm almost 50, but when I woke up here I noticed I was a kid again and I don't know how that happened" Goku said.

"You're kidding?" Clark said disbelievingly. This guy just keeps getting more interesting.

"No I'm not kidding. ALRIGHT FOOD!" Goku exclaimed as his order arrived. He began to happily dig into his food. Eating at a pace that would make the Flash pause. Clark couldn't help but drop is jaw at how fast he was going through his food. Suddenly his hearing picked up trouble and knew he had to go. He wanted to stay and find out more about Goku. If it was true and he really was turned back into a kid something bigger was going on here. Right now this emergency needed his immediate attention.

"Sorry Goku but I've got to go. I just remembered something. Do you have a place to go?" he asked.

"Not really no, I'll figure something out" Goku told him.

"Tell you what, why don't you come by this address after you finish eating and I'll be by later. I might know someone who can help you later" Clark offered as he gave Goku a card with his apartment address on it. You know, you're trusting me very easily, why?"

"Well, you seem like a nice person to me. Anyway, you're trusting me with your home address" Goku pointed out.

Clark just laughed and said the same thing, "you seem like a nice person to me." Unable to stay any longer he ran out the door. Luckily he had already paid for their meal, even though he clearly underestimated how much it would be.

After finishing his meal Goku left the diner and headed in the direction of Clark Kent's apartment. Goku didn't know what was going on or where he was so a little help might not be such a bad idea. Suddenly Goku felt several energy signatures. Something was happening and one of those energy signatures didn't feel to friendly. Deciding to check it out Goku took to the sky and flew in that direction.

When he got there Goku he saw several people in bright costumes fighting a yellow guy with a purple suit. Goku landed but the everyone was too caught up in the battle to notice. Flash who appeared nearby turned to see the boy behind him. "Hey, what are you doing here kid? It's not safe, go find you mom or something," the red clad hero said as he pushed Goku in the opposite direction.

"Wait, who is that guy you're fighting? What's going on?" He asked getting a more serious look.

"No time kid, you need to get out of here now" Flash said before he saw it. "Hey, did you know you have a tail?"

"Who is he?" Goku asked again a little more serious. Then he saw the yellow guy holding Batman by the throat. The others were hesitant to attack for fear of hurting Batman. "HEY!" Goku yelled getting everyone's attention. "PUT HIM DOWN, NOW!"

Superman was stunned to see Goku here. What was he doing? He didn't have time to ponder anything else before Goku vanished out of sight and reappeared next to the the yellow guy to deliver a powerful blow to the guy's face. After touching the ground Goku delivered a kick to the guy sending his opponent flying, Batman now beside Goku recuperating. "Who are you" Goku demanded.

"I am Mongul, who are you boy" he asked furious.

"My name is Goku, this ends now!" the saiyan told him.

"Go away boy, before you get hurt" Mongul threatened.

"If your intention is to harm others I won't allow it," he warned.

Mongul having enough swung a fist at Goku, which he caught. "I'm giving you a chance to surrender and leave peacefully. I suggest you take it" Goku stared fiercely into Mongul's eyes.

"I was only going to kill the Justice League, but just for that I am going to add you to that list" Mongul growled. Goku then punched Mongul in the gut causing him to hunch over.

"I've heard that before, save your threats Mongul" Goku said before Mongul head butted Goku. Mongul got to his feet and punched Goku in the head. This knocked Goku back but he recovered quickly. "Last chance, give up. There's no point in continuing."

"You're going to die, no boy makes a fool of me" Mongul said angrier than ever.

"Fine, if you won't give up I'm ending this" and with that Goku vanished from sight once again. A second later Mongul was flying into a boulder. The only ones able to see what happened were Superman and Flash. "You should have given up when you had the chance" was the last thing Goku said before Mongul passed out.

The Justice League members were now staring at Goku with all kinds of questions. "Well, that takes care of that" Goku said changing his tone to a more pleasant one.

"Who the heck are you?" Flash was the first to ask.

"My name's Goku" he answered.

Note: well that's where I'm going to stop the first chapter. Let me know what you think.