The Start

The sky was peaceful. Everything was at peace. Well, except for one person. The person was planting some vegetables and for some reason the man was having trouble with it.

"Man, how long can I finish this." The person said as he checked the time.

"I've been doing this for hours!?" He exclaimed as he knew the time.

"Goku! Are you done?" His wife said.

"Almost!"

"Well hurry up, lunch is ready."

Hearing that, Goku fastened his work and in thirty minutes he finally finished what he was doing.

"Yes! I'm done." Goku exclaimed.

Goku entered their house and sat down in an empty chair. Then he began eating all the food with his two sons.

"Saiyans…" Chi-Chi sighed.

After they all finished, they all gone to their separate ways. Chi-Chi cleaning and fixing the table. Gohan studying. Goten playing. And Goku training in the woods.

"Haaaaaa!" Goku shouted as he started powering up.

Rocks crumbled, the ground is shaking.

Yellow aura appeared to the place where Goku is training. In fact, he was in the yellow aura. His hair became gold, his eyes became teal, his muscles became bigger and he became stronger. 500x stronger than before.

Goku began his training. Rocks and trees were destroyed in the training.

And two hours of training, Goku decided to take a break. Goku dropped his super saiyan state. Losing his powers and strength.

The saiyan breathed very hard. Then he noticed something. He don't know what was it so he raised his power level a bit.

A blast came out of the bush and it knocked him out.

He woke up in the middle of a road. When he was about to stand up a car hit him.

"Hey! Can't you see that I just woke up from the middle of the road."

"Wait a minute, in the middle of the road." He said looking in the cars in front of him.

"Haahh!" Goku screamed as he flew.

"Whew.. That was close."

Remembering what happened and remembered it but how did he woke up in the middle of a road. He began exploring the place and found out that he is not in the forest anymore. He landed on a building to observe the city. And he also feels… Young.

After he zoomed out, he saw four people dressed in weird costumes in the building.

One is in a bat costume and is a female. Another one is wearing a black suit with a large X in the middle and a blue cape, and the skin is kind of…. Green? A boy wearing a black T-shirt with an S. Another is also a boy wearing a similar costume with the bat costume except its black and has an R on the left side of the shirt.

"Hi! I am Miss Martian and this is my friends and we're here to help you." The green girl spoke.

"Oh hi I'm Goku and I'm fine I don't need help." Goku replied.

"Okay, but can we talk to you?" The one with the bat costume asked Goku.

"Sure."

"Just not here, okay?"

"Okay…" Goku agreed.

The Kents

"Thank you again Mr. Kent." Miss Martian thanked Superman's 'father'.

Miss Martian then went to Goku and asked him everything about himself.

"My name is Son Goku, I'm 35 years old and I'm a Saiyan. Yes, I'm an alien and I was sent to Earth to destroy it but I bumped my head when I was a baby and completely lost my memory. I married Chi-Chi my wife and had two sons; Gohan and Goten." Goku answered.

"I am sorry about this but we just need to know if you're telling the truth and to know you." Miss Martian asked for permission in entering his mind.

Goku nodded in response.

Then Miss Martian entered his mind and was shocked when she saw his memories. The part where he dies, his friends die, and his sons died. That was the part she felt bad. There was more but it was blocked.

"He-he was telling the truth, he lived a hard life and died many times to save the Earth." The Martian told her teammates.

"Wait, died?" The boy with an S asked.

"Yes, but he was revived by Eternal Dragons that can grant wishes."

"Eternal Dragons?"

"Eternal Dragons can grant any wish like immortality, fame, revive the dead and more." Goku answered his question.

"Are you sure he is 35 years old?" The boy with the S said.

"Yes but he look like about to be 21 years old."

"What do you mean 21 years old?" Goku asked.

"Yeah you look like about 21 years old."

"Maybe that's why I feel young."

"We need to bring him to the Watchtower." Miss Martian suggested.

"Are you crazy? Bringing an Intruder to our last base?" The girl in a bat costume replied disagreeing.

"But he's a good man." The Martian defended.

"Fine." The bat finally agreed.

"Can you guys introduce yourselves now?" Goku asked.

"Okay, I am Batgirl." The girl in the bat costume answered first.

"Robin." The boy with an 'R' said.

"Superboy" The boy with an 'S' said.

"You need to come with us." Batgirl said.

Watchtower

"You do know that 'visitors' are not allowed here" Batman said to Batgirl.

"Where do you live Goku?" Superman asked ignoring the two.

"On Four-Thirty-Nine East Mountain District."

"Hmm… It doesn't exist here." Batman trying to figure out what happened to him.

"He might be in another dimension."

"There is a possibility that-." Batman was cutted when the alarm goes off.

Batman saw that the team is suited up for action.

"Team I need you to go there."

BREAKLINE

Goku is 31 years old in the Buu Saga so I just put a three year gap. Trying to practice writing stories.

Power Levels

Goku:

Base: 55,000,000

Super Saiyan 1: 27,500,000,000

Superman: 160

Batman: 13

Superboy: 120

Miss Martian: 30

Batgirl: 9

Robin: 7

Check the Internet for your complains with the power level. I hope that may answer it.