Despite being absolutely sick of each other, Vegeta and Raditz went back into the gravity chamber. Goku, after being turned down by Whis when he asked for more training, tried his luck with King Kai. Dr. Brief and Panchy, meanwhile, had returned from their vacation, stunned at the state the compound was in. But their tune changed when they found out their great grandchildren from the future were among them.
"My goodness, you're just so adorable!" Bulma's mother gushed, pinching her great grandson's cheek. Panchy shifted over to Bulla, doing the same to her. "You look just like Bulma when she was little!" She then gasped upon seeing what was wrapped around her waist. "But you have a tail! That's even cuter!" When Panchy grabbed her tail to see what it felt like, it caused Bulla to seize up.
"Uh, great granny she hasn't gotten over that yet!" Gohan quickly told her in a panic.
"So, you brought this old thing out again?" Dr. Brief observed, looking up at the time machine.
"Yeah, and this time we're going to actually fix it now that we have this," Bulma told him, handing him the notebook.
"Hmm, looks like fun," he said, skimming the notebook. "Let's get to it."
The Briefs dumped their bags onto the Pilaf Gang as they recruited them to assist.
"I'll help!" Goten quickly said as they were going back inside.
But Chi-Chi grabbed him by the scruff of his neck. "No, you don't. You're going to study to make up for skipping school."
"You too, Ranch," Launch told her.
"Right now? But what about my kids?" Ranch asked, although saying it out loud like that felt weird.
"Hey, at least you weren't drafted for cleanup duty," cousin Gohan said, as he, Piccolo, and Krillin passed them on their way to fix up the lawn.
"I think they need to rest up," Launch said, looking at them. "They've been through a lot today. Trunks, is there somewhere they can stay?"
"I suppose," Trunks said. "Come on, I'll get beds ready for you two."
Bulla, now realizing how tired she was, yawned as she said, "Thanks, daddy."
Trunks blushed deeply, and said, "Yeah, no problem. Follow me."
While the future kids rested, Bulma and Dr. Brief started their work on repairing the time machine. When Daikon and Mooli showed up after school let out, as they were instructed to do, they were brought up to speed by Trunks, and the twins were baffled to find out they were suddenly uncles. After accepting the whole time travel stuff, they began mirthlessly began to poke fun at Trunks and Ranch. Not long after that Videl arrived with Pan, since curiosity got the best of them when Gohan explained what was happening over the phone.
Outside Beerus and Goku, who had returned after being turned away from King Kai, were complaining about dinner not being ready, meanwhile Whis was studying the recording of the fight with intrigue. He and Beerus agreed that there was something familiar about his energy.
Eventually Chi-Chi and Launch prepared a dinner large enough for all the people that were at Capsule Corp. Beerus, Whis, and Goku were the first to receive their meals, and when they cleaned their plates the deities said that they were leaving to investigate a lead over at the Tenth Universe. After practically begging, Goku was allowed to tag along.
Not long after they left, after the tables were cleared, more arrivals showed up. Gohan and Bulla, both in a fresh set of clothes, were playing with their second cousin Pan, even though it was way past her bedtime. A blonde woman with a little girl on her back walked up to them, causing the younger Gohan to stand up and yelp.
"It's—It's her!" he cried in panic, pointing at her.
Gohan put his hand out to fire an energy beam, but Ranch quickly grabbed his wrist. "Whoa! Cool it, she's okay."
Astonished, he said, "But, mom, that's 18! I learned all about how she and 17 went on rampages before you and dad took them out for good."
"We did?" Trunks asked in surprise.
Then a little girl that had been on 18's back, happily cried, "Daddy!"
"Marron!" replied Krillin, hugging his daughter when she hopped off her mother to run up to him. "What are you still doing up?" Looking up at his wife, he asked, "What are you doing here?"
"Well, you never came home, so we came to check on you," replied 18.
"Really, Krillin, you didn't give her a call?" the elder Gohan said to him with a deadpan expression.
As Krillin nervously laughed, 18 asked him, "So who are they?"
"Oh, remember the Trunks and Ranch from the future? Those are their kids."
"Is that so?" She strolled up to them. "You know, that mother of yours called me a not-so-nice name once. Tell her that if I ever see her again I'll get payback," she told them. 18 playfully added, "I'm kidding."
The caused the young Gohan to scoff. "Yeah right, even if you weren't, my mom blew you to bits once already. She can do it again."
"Yeah, mommy is really strong!" Bulla said confidently.
That caused Marron to run up, declaring, "So? My mommy is stronger!"
"No, mine is!"
"Mine is!"
"Mine!"
"Hey, Bulla, what about your dad?" Trunks mumbled, as the two little girls repeated themselves.
Krillin patted Trunks on the back. "Oh, I know for a fact that the future you can take me out without breaking a sweat. No need to compare."
Making a face, he replied, "Krillin, I can do that right now."
It eventually became late enough that Gohan and Krillin took their families back home, ensuring that they'd be back to bid them farewell. Raditz, Launch, Chi-Chi, Goten, Ranch, and the twins were all given a place to sleep for the night.
The next morning Bulma, who was up all night, was still working on the time machine. When the sun was fully up something bright fell from the sky and fell in the compound, causing a violent crash that woke everyone up.
Later, when everyone was eating breakfast, Whis filled in Raditz, Vegeta, and their grandkids on their findings. While a lot of it may have gone over the kids' heads, they could still understand that they weren't closer to figuring out who or what Goku Black was. The adults discussed Zamasu further, and whether or not he's completely innocent in everything that's happened. When the meal was finished, Beerus and Whis took their leave.
As Bulma left, complaining about more holes in the yard, Raditz went up to his grandkids.
"I've been thinking," he said. "How would you two like to do a bit of training with me? I can show you some proper Saiyan techniques."
Vegeta, overhearing this, was upon them in a flash. "Hold on, Raditz, if anyone is showing my grandchildren proper Saiyan anything, it's going to be me!"
"Damn it, Vegeta, they're my grandkids too!" Raditz vehemently argued back.
"I don't want them to pick up any of your low class nonsense!"
The two glared at each other angrily, as their impatience with each other that they had bottled up over the last day boiled upwards. "Gramps. Grandpa. Why don't you both teach us stuff?" Gohan said obviously.
Vegeta looked from the future kids to Raditz, and grinned menacingly. "Actually, that sounds like a good idea. Not only that, Raditz, but I'll allow you to start it off. I just need a little time to prepare."
Raditz didn't like the look on Vegeta's face, but said, "Alright."
So that they won't cause any more damage to the compound, Raditz took the kids to an empty field outside the city. "So Ranch mentioned to me that you have yet to achieve Super Saiyan," Raditz began. "Have your parents been trying to draw it out?"
"Sort of," replied Gohan. "They've had me try and power up a couple of times, but they've never really expected me to actually get it."
Raditz nodded. "In that case they just might be waiting for the right time, but are just prepping you for it. And to give you a taste of what's to come I'm going to show you a level beyond Super Saiyan."
"Ooh! I know," Bulla said excitedly. "Mommy and daddy can do Super Saiyan 2!"
Grinning, Raditz said, "So your father achieved that, as well? Very good. But that's not what I'm talking about. I'll be showing you something even more powerful than Super Saiyan 2!" With a yell, Raditz quickly powered up, and in a flashing of dazzling light his hair and eyes now blue. "We call this Super Saiyan Blue."
"Cool!" Bulla cried with big smile on her face.
"Awesome!" shouted Gohan. He couldn't feel his energy, but the pressure he was putting out was something else! "With that power you guys will have no power taking down Black! Can grandpa do that, too, gramps?"
"No, he hasn't put in enough time on his training with Whis, and because of that he has yet to achieve this form," Raditz told him.
Just then Goku appeared before them using Instant Transmission, and he had brought along Vegeta and Bulma.
"Hey, bro, I see you're showing off Blue," greeted Goku.
"Why are we doing this now?" asked Bulma, annoyed. "We're almost done with the time machine."
"This won't take long," said Vegeta. "Go ahead and do it, Bulma."
Bulma sighed. "Fine, whatever." She took out of her pocket a capsule, pressed the button, and tossed it. From the capsule popped out a tank like device with dishes on top.
As Bulma hopped in, she asked Goku, "Hey, you still have Senzu beans from yesterday?"
"Yeah, why?"
"We might need them."
As Bulma began pressing button and dials, Raditz looked at Vegeta, asking, "What's all this about?"
Smirking ruthlessly, he answered, "I was going to show you this power sooner or later, but I can think of no better time than right now in front of our grandchildren, so they can see for themselves who's superior."
The dishes on top of the machine began to emit a green beam that hit Vegeta, who could feel the Blutz waves do their thing. He felt his tail grow back, and he began to grow in size as he began changing into his great ape form. But before Vegeta got too big, he calmed his mind to become the golden great ape, until he shrank down even more. When the light cleared, Vegeta stood there with longer hair, markings around his eyes, and red fur covering most of his body.
"How do you like Super Saiyan 4?" boasted Vegeta, basking in everyone's astonished looks.
"Wow, grandpa! That looks really cool, too!" Gohan said excitedly. "Wait, does that mean there's a Super Saiyan 3?"
"I can show you that later," Goku offered.
Vegeta continued, "Well, Raditz, let's demonstrate our power. See which one is superior."
Raditz angrily growled, "Are we really doing this now, Vegeta?" The look he was giving him provided the answer. "Alright. I promise to hold back so I don't kill you."
"That's my line," said Vegeta, as they rose to the air. "After all, I'm going to need you to distract Black while I transform."
"Oh man, this is going to be intense!" Goku commented, waiting in anticipation for the fight to start.
"Shouldn't you put a stop to this?" Bulma said. "They're supposed to be working together to help the future."
"It'll be fine," Goku said passively.
When they got high enough up in the air, the two let out a loud yell as they powered up before they charged in towards each other. They both threw a punch that connected, sending shockwaves all through the surrounding area. Bulma, Bulla, and Gohan all had to shield their faces at the strong gust that the impact created. They tried with all their might to overpower each other, and both were shocked at just how much the other was able to hold them off.
Raditz broke the stalemate by quickly backing off and trying to kick Vegeta, who blocked it with both arms. Vegeta went into to counter, but that was evaded. From there it turned into the two resorting to whatever they could to land any sort of hit. Every so often one of them would get something in hard enough that it'd caused another shockwave.
Vegeta managed to get under one of Raditz's attacks, and hit him in the gut with an uppercut. Raditz doubled over from the hit, but he took the opportunity to head-butt Vegeta. Not to be outdone, Vegeta, reached up to grab Raditz by the head, and then drove his knee into his face, immediately followed by a drop kick that sent Raditz crashing to the ground.
"Uh, isn't this going way beyond a sparring match?" Gohan asked with concern.
"Nope, your grandpas are really going at it," Bulma said bluntly.
"What?" Bulla yelped. As Raditz rocketed back into the sky, she yelled up at them, "Grandpa! Gramps! Stop it!"
But they barely heard their granddaughter's cries. When Vegeta and Raditz began zipping around the air, Bulma and not even the grandkids could keep up with their movements anymore. The longer that they went at it, the more damage that each took. All the frustrations that had built up the previous day and simultaneously put aside because of the future kids were bursting out. Suddenly dropping their defenses, Vegeta and Raditz curled their fists and put everything they had into one punch. Both hit the other in the face, blowing each other a large distance through the air.
Once coming to a stop, the two Saiyans panted heavily as they angrily stared each other down. They simultaneously began to charge attacks.
Vegeta twisted his body and raised his arms over his shoulder. "Galick Gun FIRE!"
Raditz thrust both his arms in front of him. "Double Sunday!"
The energy beams collided. Everyone except Goku shielded their eyes at the brightness of the combined attacks. The two Saiyans had put everything that they had into the beams straight off. No more games. The ball grew bigger and bigger, making it even more difficult to control. Goku, seeing what was coming, snatched up Bulma and the kids, and got them out of harm's way. Finally, the ball got so massive that it seemed to swallow up Raditz and Vegeta.
There was an explosion followed by a powerful gust of wind.
When everything calmed down, the four looked over to where they last saw Vegeta and Raditz fighting.
"Honestly, they better not have killed each other," Bulma said petulantly. Grabbing ahold of Goku, she said, "Well, let's go find them."
Goku took to the air with the children, with Bulma on his back. It didn't take long to figure out where to start looking, because their combined attacks had created a rather large clearing. Vegeta and Raditz were half-buried in a pile of debris, both completely unconscious. At Bulma's direction, Goku dragged them both out, put them on the ground next to each other, and fed them a Senzu bean each. They chewed the bean, swallowed, and opened their eyes.
"You two get it out of your systems?" asked Bulma.
Vegeta started, "I—"
"Good," she cut in. "Because you're the ones that asked me to take you to the future, and I don't want your issues with each other getting in the way when we get there!" When Raditz and Vegeta shared a look, that was all Bulma needed before stomping off.
"Wow, even in the past grandma is scary," Bulla commented.
