Foreword: Stronger Z fighters and a Frieza that got punted into the sun? Let's see how this affects things going forward.
After the Z fighters returned to Earth from their adventures on Namek, there was peace for around 6 months, the humans learning Spirit Control from Krillin and occasionally Bansuri, Piccolo and Bansuri learning the techniques they didn't learn on Yardrat from each other and Goku and Gohan placating Chi-chi and showing her the cool clone technique they learned in space to do more around the house with Chi-chi being thrilled at more help around the house without the drawback of more mouths to feed when the clones disperse.
At the tail end of this peaceful time, Vegeta teleported back to Earth with a sour expression on his face and his feet in some sort of pastry as his teleportation landed him on top of the balcony table where Bulma's mother Panchy was having brunch.
Panchy: "Oh my!"
Bansuri was the first person to teleport to Bulma's place when he sensed Vegeta's energy, followed immediately by Piccolo with Krillin, Tien, Yamcha, Chiaotzu and Goku and Gohan following after.
Bansuri: "Hello Vegeta, it was nice and quiet when you were out in space. What brings you back here?"
Vegeta: "...couldn't find King Cold"
Vegeta sulked as he floated off Panchy's Brunch and on to the ground, the group of fighters looking a bit puzzled.
Krillin: "King Cold?"
Vegeta: "Frieza's father and the one running the empire now Frieza is gone. I was hoping to wipe the damn thing out but noooo. King Cold had to do a vanishing act."
Bansuri: "Wiping out a tyranical regime? How noble, I suppose you're doing that out kindness and not as some misguided and sad way of making yourself feel better after Gohan showed that he's stronger than you and made it to Super Saiyan earlier in his life than you did?"
The people present stared at Bansuri for the calmly stated but scathing retort, Piccolo looking proud at his son's ability to verbally tear someone apart with Vegeta glaring silently at Bansuri before Bulma walked in.
Bulma: "Huh? What's going- Oh! hey Vegeta, when did you get back?"
Vegeta: "...a moment ago"
Bulma: "Well get in the shower, you reek!"
Bulma held her nose and Vegeta looked shocked at being spoken to in such a way.
Vegeta: "Now see here woman-!"
Bulma: "Shower. Now!"
Everyone froze at Bulma's order and the fighters expected to have to jump in to stop Vegeta but after a long pause Vegeta was led inside by Bulma, grumbling the entire way. Everyone continued to float where they were for a moment longer before Bansuri sighed and gave a flat annoyed look.
Bansuri: "...He's going to be staying here isn't he."
Piccolo: "...Yep"
Bansuri: "...Damn"
Vegeta (much to Bansuri's annoyance) did stay on Earth and at Capsule Corp, learning the ways around and seeing Bulma working on designs based on the space ship they stole from Frieza and the effects that were on the ship including body armor. It was an entire week of the Z-fighters keeping an eye out on Vegeta's energy before they started to relax before they sensed two huge powers coming from space, the Z-fighters and Vegeta flying to the wasteland to meet the coming threat.
Bansuri: "Both of those energies remind me of Frieza, I'm guessing one of them is King Cold?"
Vegeta: "Yes, the other one is Frieza's brother, Cooler"
Krillin: "That monster had a brother!?"
Vegeta: "Cooler is Frieza's older brother, don't know why he wasn't given the empire but apparently it was a management issue."
Vegeta shrugged and watched the ship enter the atmosphere and make it's way to the ground, the ramp coming down and the door opening with soldiers rushing out to stand in formation in front of the ship. After a moment, the fighters could see two figures walking down the ramp, the larger one looking like Frieza's second form wearing a cape and the shorter figure looking like Frieza's final form but with a mostly purple body with white parts on the calves, forearms, upper torso and head.
King Cold: "So this is the home of the one that killed Frieza? Seems like a nice place, could be worth quite a lot if we "Cleaned" it up."
Cooler: "I fail to see how Frieza's death is my concern. He's the one who picked a fight and lost"
King Cold: "Now now Cooler, this is a family matter and that means it's our duty to secure our family's future by dealing with the issue"
Cooler: 'As if you really care about family, you're scared for yourself'
Cooler quietly rolled his eyes as his father started giving orders to the soldiers.
King Cold: "Now gentlement, I expect the body of the saiyan to be delivered to me in half an hour or you're not getting paid. Get to it."
The soldiers gave a salute and made to take off and search before they were knocked to the ground at King Colds feet, a young man with blue-ish hair with blue clothing and a sword on his back standing in front of the two family members and remaining soldiers.
Young Man: "So, you must be King Cold and Frieza"
Cooler: "No, I am Cooler. Frieza is dead."
Young Man: "Oh! Um, okay but why are you here?"
King Cold: "Why to avenge my son of course"
Cooler rolled his eyes behind his father, something that the young man was confused by but decided not to question it.
Young Man: "Leave this planet or die"
King Cold: "Now that is adorable, men kill the whelp"
The remaining soldiers charged at the blue clad boy only to immediately get knocked back and knocked out, more soldiers landing at King Cold's feet.
King Cold: "(Sigh) why do I bother paying you weaklings...Fine, I suppose I'll have to take out the trash myself"
Young man: "You're the one that's going to be taken out. HAAAAA!"
The blue hair of this youth started to spike up, flickering between blue and blonde before a burst of yellow energy surged from the youth to reveal them as a Super Saiyan, shocking the Z-fighters spectating on the hill in the distance.
Goku: "Wow! Another Super Saiyan! I wonder if he wan't to train with us?"
Everyone sighed and/or shook their head at Goku's enthusiasm as Vegeta quietly seethed. Bansuri however spotted something more interesting.
Bansuri: "The larger one is full of malice and dark intentions, but the smaller one is more disinterested and annoyed..."
Everyone looked at Bansuri puzzled.
Krillin: "But aren't they both invading?"
Bansuri: "They are, but the smaller one isn't finding delight in the idea of being here and killing everyone. It's like they're being forced into doing a chore"
Vegeta: "Hmm, Frieza and his father were always close and both of them are sadistic monsters. Are you saying Cooler was disowned because he wasn't a big enough prick!?"
Bansuri: "Perhaps. Let's see how this plays out first"
King Cold was shivering in fear where he stood, the green eyes, the golden glow and spiked up blonde hair. Everything that was described by Chilled and passed down the family as a boogeyman to haunt their nightmares was staring him in the face. The Super Saiyan.
King Cold: "N-No way! You couldn't be!"
Young man: "You made a bad choice and now you're gonna pay for it"
King Cold: "No! NO! I won't die here! You will!"
King Cold launched into the air and immediately made a massive energy ball and threw it at the Earth, the Super Saiyan stood on the ground and watched it approach before throwing it back at King Cold, the blast hitting the older tyrant and exploding in the air leaving a burned alien with a tattered and burned cape. Before Cold could speak his outrage, the Super Saiyan appeared in front of him with a sword in his hands and proceeded to dice the king into tiny pieces before erasing the pieces with a blast.
The now Super Saiyan youth floated back down to Earth to see Cooler with a thoughtful and impressed look on his face. The youth confused by this let's the Super Saiyan aura fade, leaving him with blue hair once more.
Cooler: "So this is Super Saiyan, the potential of the Saiyan race my idiot brother squandered. If I had been in charge I could have had an army of Super Saiyans...(Sigh), Such a waste..."
Cooler looked genuinely disappointed at not having such a thing and Trunks was somewhat put off balance at the attitute Cooler had.
Young man: "Um, aren't you upset that I killed your father?"
Cooler: "Not really, I was raised by Berryblue, one of his attendants. She was more family than my fool of a father or coward of a little brother"
Young Man: "Oh!...So what are you going to do now?"
Cooler: "Why take over the Empire of course and spread my great name across the universe. I will be reveared as the one to put an end to hunger, thirst, sickness and homelessness. I have several barren planets to teraform to grow resources and infastructure to bolster. Take care Super Saiyan, Men! Pick up the injured and get them back on the ship, we're leaving."
Trunks watched in disbelief as this apparently good brother of Frieza packed up and left, this wasn't what happened according to his mother and was that Goku already with the group on the plateau? He was supposed to be on his way back from space still! Did he mess up the timeline already?!
Trunks: 'On the plus side Gohan feels about as strong as Goku but who's the extra Namekian? Guess I'll have to find out'
Trunks shook himself out of his thoughts and waved at the Z-fighters on the rock and his mother flying in? Trunks decided to shut his mouth and roll with it. Asking to speak to Goku privately, testing his power and finding it increadible and telling him that he is from the future and about the android threat coming in 3 years. After Trunks gave Goku the Heart Virus medication and instructions to take it when the symptoms started, Trunks decided to ask some questions.
Trunks: "I couldn't help but notice that Krillin, Tien, Yamcha, Chiaotzu, Piccolo and Gohan are way stronger than I was told about and that there's another Namekian here? What's happened here?"
Goku: "Oh! That's Piccolo's son Bansuri! He's super helpful in a fight and he helped me fight Vegeta on Earth and Frieza's people on Namek! He's a great training partner and he came with me Gohan, Krillin and Bulma and trained with us on the way! Oh! and he helped Gohan get Super Saiyan on Yardrat when we stopped there on the way back."
Trunks: "Wait, so you, my parents, Gohan, Krillin and Bansuri trained on Yardrat?"
Goku: "Yup"
Trunks was reeling, this wasn't his past but an alternate one? That meant that time travel worked on multiverse theory and nothing he did here affected his own time. Still, he didn't wanna announce who he was to his parents just in case and he asked Goku not to mention who he was. Trunks leaves Goku to tell the group about the upcoming android threat and as the group was talking they see Trunks in his time machine vanish.
Bulma: "...Huh, that looks like something I would make..."
Goku, Piccolo and Bansuri decide not to comment on that, the Namekians having heard the conversation due to their hearing and helping Goku through explaining, keeping quiet about who the time traveler was out of respect.
With knowledge of the coming danger the fighters set about training themselves in preperation for the androids. Will the Z-fighters' training be enough to deal with the mechanical menace? Or will the warning of doom in the future come to pass? Find out next time on Some Help.
BONUS SCENE: Technical Difficulties
In a hidden laboratory in the mountains near North City, a genius imputs data into a computer system. Genitic samples of the world's greatest fighters and recordings of their fights analysed and calculated to discern how best to defeat the warriors and how to replecate their abilities to utilize them against said warriors.
The data stored in the cells of a removed green hand is put into the computer system only for the monitor to start flickering rapidly and then shutting off, the whole system crashing and from Dr Gero's experience, wiping all the data on the system. Gero stared at his reflection in the monitor for a moment before closing his eyes and taking slow deep breaths...Until his eyes snap open with fury and he picks up his monitor and throws it across the lab, making it shatter on a wall.
Gero: "WHY IS IT ALWAYS HIM!? WHY WON'T THE SYSTEM ANALYSE HIM!? WHY CAN'T I FIGURE OUT "MAGIC"?!"
This had been the 7th time his system had crashed and had to be recompiled from scratch, his own paranoia ensuring he had backups on external drives. Every time the system crashed it was because of the son of Piccolo, Bansuri. His drones always brought back corrupted data when they recorded the new green nuisense, even if they were recording someone else should Bansuri even be glanced at by his drones? The data becomes worthless. His mere presence prevented Gero from getting a majority of information on Piccolo, the fight with Vegeta and even the training done with Goku and Krillin!
Gero: "Even his cells are stopping me from getting what I want! How am I supposed to fight him if I can't get his data?!"
Worse yet Gero had to redo the Bio-Android project in it's infantcy 3 times! each time he added Bansuri's genetics to his master piece, the biotech embryo popped like a balloon! Piccolo's DNA didn't do that so Why did Bansuri's?
Gero: "I have replicated the ability to produce energy, found a way to absorb said energy, I implanted my own brain into an android body, so why? WHY CAN'T I COMPUTE BANSURI'S DATA!?"
Gero grabbed his keyboard and smashed it against his desk before grabbing the mouse, ripping it from it's cord and pitching it across the room to join the monitor in pieces. Gero panted in place, trying to fathom a solution then shaking his head.
Gero: "Screw it! I don't need Bansuri's data! I'll just use what I have and work up from there. My Androids will kill son Goku and anyone that get's in my way regardless, my genious will triumph!"
Gero nodded to himself before realizing that he'll need to order new computer parts first.
Gero: "...that delivery drone better not drop any of my orders..."
