Guy sensing the threat said out loud "Goku and Vegeta stay here and hold off while I get our families to safety!"
Guy flew toward the families and start carrying his wife and son. While the others helped those that couldn't fly. Goku shouted to Guy and said, "Take your time Guy me and Vegeta wanted a good fight."
Guy nodded as he began to fly away from the location. The threat he felt coming from that direction made him want to make sure his family wasn't anywhere near it. They all began to fly away from the rubble of Guy's Mansion.
When they left Goku said with a serious tone "Vegeta you can feel it too right? This is going to be one tough fight."
Vegeta scoffed and said "Please maybe for you Kakarot but me alone would be enough to deal with whatever is coming this way"
Goku gave Vegeta a sideways glance as he got ready for whatever was coming. But before that Trunks from the future showed up and said with happiness "Perfect I'm not too late"
Vegeta said with a sneer "What are you doing here Trunks? Don't try and interfere this is my battle"
Trunks shook his head and said, "No father that's not because of that I came here to warn you about what you're about to face!"
Before Trunks could say more a large 8-foot-tall grey mass of muscle landed 50 yards away from them. It looked at each of them and locked in on Goku. The android immediately charged at Goku But Vegeta intercepted it and kicked it back a few feet.
Vegeta powered up and said, "Your opponent is me!"
The android charged ahead and they clashed. Trunks was getting annoyed as he said "Damnit dad"
Goku said to trunks "What's the matter trunks?"
Trunks pointed at that android and said "That! That's the problem this isn't supposed to happen. When I was traveling back I saw something I wasn't supposed to. I saw a changed timeline way more drastic than what's supposed to happen."
Trunks watched the battle go on as the android gradually got stronger and adapted to Vegeta's current level. He said with seriousness "Vegeta may seem like he's winning but that android is anything but normal."
Trunks turned to Goku and said "Please Goku come with me and help us kill this android before it's too late"
Goku nodded and said "Ok"
They both powered up and flew to the android. Trunks swung his sword down at full power in his base mode and cut the arm off the android and Goku punched the android dozens of yards back. Vegeta said with annoyance "WHAT'S THE MEANING OF THIS! I HAD THAT!"
Trunks shook his head and said, "Father please listen this is too dangerous we have to take it down NOW before it's too late!"
Sadly the process has already begun. The 8-foot tall grey mass of muscle was heavily injured. But it was starting to get covered in yellow lighting it's power level soared as it unleashed an energy burst damaging the surrounding area. All 3 Saiyans were being pushed back from the pressure. They saw the 8-foot-tall Android change. Its undefinable features became more monster-ish as it grew sharp spikes across its body. It roared as its power level went beyond Vegeta's base form.
Trunks held his sword steady and went super Saiyan he said with seriousness "GO ALL OUT NOW BEFORE IT CAN ADAPT EVEN FURTHER! PLEASE, FATHER!"
Vegeta and Goku went to Super Saiyan. Trunks was at the lead with his sword drawn. Vegeta and Goku were on trunks side. Trunks launched himself forward with a roar "HAA!"
Android D launched itself at Trunks and tried to stomp him to the ground. Trunks slid underneath the android to dodge. Vegeta flew above the android grabbing its attention. Trunks swept the android's legs as it lost its balance. Vegeta seeing the opportunity flew straight down into its stomach full force. A crate formed as Vegeta was uppercut out of the hole.
Goku was shooting Ki beams to distract it but the android eyes and mouth glowed yellow as it shot powerful beams at each of them. Goku was shot right into a mountain as he quickly got himself out of the mountain.
Vegeta was flying straight to the android and he launched twin Ki beams from his hands at the android's face as it countered with there own Ki beams. You can see their yellow and purple beams collide as Vegeta yelled out "AHHHH!"
But the android just blasted him even further away. Trunks was fighting it solo as Goku appeared beside Vegeta and said "Trunks was right we need to end this now. "
Vegeta said seriously "3 minutes"
"What?" Goku asked with confusion
"Buy me 3 minutes and I will end this ok Kakarot?" Vegeta said with seriousness.
Goku nodded and said "Got it"
Goku's aura flared as he helped trunks fight this android. Vegeta slowly flew into the air and spread his arms out as he focused his energy. He yelled out "HAAAAAAAA"
You can almost hear the Bruce falconer music playing as Vegeta's energy surged as it was being condensed and focused into this one attack. Slowly time passes as his energy attack gets even stronger. When Vegeta was nearing its end He yelled out "THROW HIM IN THE AIR!"
Goku flew underneath the android and launched him into the air with a full-powered uppercut. As he was sent flying 70 meters into the air Vegeta aimed his attack at the android and yelled out "FINAL FLASH!!!!"
A gigantic yellow beam went towards the android as it engulfed Android D. After that attack ended Vegeta was panting as his super Saiyan form went away. Goku arrived next to Vegeta and said "Wow Vegeta that was one powerful attack. Were you saving that for Guy?"
Vegeta nodded and said "You or Guy... Either one I fought first"
Trunks went towards his father and said "Father you did it! You saved the future"
Vegeta nodded and got up. A few minutes passed when Guy showed up and said "I guess that I wasn't needed"
Guy tossed each of them a senzu bean and said "Thank you for helping me. I had to make sure my family was safe."
They nodded and then they all flew to where everyone else was waiting. When they landed Goku told everyone what happened. After that eventful day, they all headed towards Capsule Corp to finish their barbeque. Guy was helping cook the late dinner and while cooking he thought to himself 'I was strong enough to save my family but they almost died today... I need to get stronger
The already bright fire that burned within Guy went up a few notches. Soon the barbeque was done and they all ate under the night sky. While everyone was eating trunks asked to speak with Goku and Vegeta by themselves. They agreed and went outside as Trunks said seriously "I didn't come back to the past just for today."
Goku and Vegeta waited for Trunks to explain as he said " What we faced today isn't what comes in the future"
They gained a serious look on their face and Goku asked "Then who are we going to face?"
Trunks looked up towards the beautiful starry night sky and said "A being that reaches perfection"
While they were talking and enjoying the night. Unknown to them a very small cell from Android D was still active. It was very slowly growing back to it's original size until a needle like tail pierced the almost formed android D. A slithery voice said with a smirk "Well well we'll... They saved me the effort..."
The green scaled being smirked as he can feel his power rapidly improve as he absorbed the android.