When Raditz landed down onto the island he was met with several people glaring holes in him, he then saw Kakkarot, 'wait Kakkarot's here, what's he doing with these earthlings that have only a 80-200 Battle Power.
When Raditz saw Kakkarot he said, "Kakkarot what are you doing with these weaklings, weren't you supposed to eliminate all the earthlings so we could sell the Planet to some other bidders"
When Goku heard him, "Who is this Kakkarot you keep on mentioning, my name is Son Goku and who are you"
When Raditz heard this, "It seems you forgot I Raditz am your elder brother, and you are Kakarot my younger brother" he then berates him for not completing his "mission". Further complicating matters, Raditz also claims that Goku is from the same Saiyan race as he is, and that he and Goku are in fact brothers. Z-Fighters understandably think that Raditz is nuts, however Roshi reveals that there may be some truth to the Raditz words, and suddenly interjects; Master Roshi reveals that Goku's adopted grandfather, Grandpa Gohan, found a strange space capsule in the woods containing baby Goku. As a baby, Goku was violent and ill-tempered, though one day he fell down a ravine and suffered severe head trauma, which in turn changed Goku into the happy and mature child that everyone came to know and love.
Raditz then goes on to state that, "Kakkarot's original purpose was to destroy all life on Earth, which he should have done in a matter of years after his arrival, I also see a moon here meaning he could killed everyone in his Oozaru Transformation". Raditz also reveals that the Saiyans' original home planet, Planet Vegeta, was destroyed by an asteroid some twenty years earlier, and that there are only four Saiyans left, including Goku. Finally, Raditz says "I needs your help brother in destroying all life on a distant planet". Goku refused, which prompts Raditz to notice Gohan, Trunks, "So it seems you've settled down with these weak earthlings who only have about a hundred BP well if you won't help me I'll just....".
Goku then said "It doesn't matter if you kill anyone or whatever we'll fix it all and resurrect everyone with the Dragon Ball's that Piccolo made" with this said Raditz saw a Namekian standing near them, "Namekian ayy"
Before Raditz could finish Master Roshi gave him a palm attack smack dap on his face hurling him ten meters straight, "And that's what you get for calling me weak, you all call me weak but I'm not, recently I started training and I felt as if all my potential was unlocked and I rapidly improved in power, and the Earth seems to have gotten much more easier to train in somehow as if the mass and gravity have increased"
Raditz was launched straight through the air with water fluttering on both sides, Raditz was angry and pissed off as never would he think someone with the Power Level of 699 was able to oneshot him, while this happened he broke his scouter as he felt it was unreliable, how could someone with 699 Battle Power destroy him he has 12,000 Battle Power it doesn't make sense.
It means that The Earthlings are stronger than they look and it seems they can control their battle power, "Hmph the old man managed to launch me so far due to my carelessness, and because he used a Sly Trick, that palm he sent me flying with felt like Electricity
(Kame-Style: Thunder-Shock Surprise)"
Soon Raditz arrived back but instead of suppressing his power he used all of it and released it out thinking the Z-Fighters would cower in fear, but boy was he wrong. Yamcha started to laugh and said, "I don't care if your an alien or Sonic the Hedgehog, but why would you come here with such low Battle Power do you think this is a...." Before Yamcha could finish ,Raditz had spotted Krillin he had a furry tail that resembled that of Goku's on his stomach instead of an Obi to tie his Doji with.
This made Raditz think, 'Can it be that there was another Saiyan Infant sent to Earth, it seems he also does not know his origins'.
Raditz interjected while Yamcha was trash-talking him and said, "How could there be two Saiyan's on Earth, it doesn't make sense" when the others heard this they were like 'what' they had just found out Goku was an Alien but someone else is too. Raditz then pointed at Krillin who was now five foot six only a little taller than Vegeta, saying "It seems you are the other Saiyan strange I just noticed you now, come join me and we will destroy that blasted Vegeta and then we can rule the galaxy to do this however will be somewhat painful unless you can regenerate hahaha we can both abuse our Zenkai's to become stronger than any Being" Krillin, Yamcha, Tien and Piccolo then understood that the power they had that made them stronger after being Damaged was called a Zenkai, however Both Yamcha and Tien knew they were no Saiyan's as they did not have the signature monkey tail, Piccolo was also feeling strange as he knew he was no Saiyan he didn't even have any body hair he was a Namekian as he could read his memories and hear Raditz Murmur, he then thought back to when Goku found him that was when he got the Zenkai ability, but it seems his Brother can't give others powers anymore.
Yamcha and Tien found this fact too, they got stronger and this ability once they met Goku meaning he was the one who gave it to them , at this point Piccolo telepathically told them what happened, etc.
Krillin Replied To Raditz saying "I don't care if I'm a Saiyan I'm still going to be the Human Krillin regardless and who are you to talk with me like this with your puny Battle Power" and with this said annihilated Raditz into cinders with his Kosengan. However it seems Raditz Scouter was still working and recorded all of what they said sending it to Vegeta, who saw this and Thought , 'Finally I can Wipe out that Bast*** Fridge I mean Frieza and become the New Emperor of the Galaxy, all I need to do is wish for A Super Healing Factor/Regeneration and then I can abuse my Zenkai's infinitely and can even fight Fridge I mean Frieza and get stronger over the Course Of the Battle, heheh I must Royally thank them for taking out that treasonous pest Raditz now no one can take my Title "Prince Of All Saiyan's"'
" ...I hope to see you still joking around in battle when I arrive in a year Earthlings the Prince is on his way To Royally Execute you all...." was what everyone Heard from the Completely destroyed Scouter. The Z-Fighters then thought oh not again another one of Goku and Krillin's race, but they thought maybe the Person is really strong he could be worth someone Fighting.
Goku said to the rest , "It seems we'll have another Guest in a year I hope to see you all train" 'even though I Know you can wipe out any Threat up till the Start of the Beerus Arc'
And With this Piccolo suddenly said , "We can all Train effectively if we head out into the Universe for Six Months and we can alsosurvive in space with no Oxygen if we use our Qi to form a Thin barrier around our Skin and Hair making us filled with Qi as a much better substitute than Oxygen (Goku, Bulma, Chi-Chi, Gohan and Trunks don't need to do this as they all have Majin Buu Bloodline) we can see if there are any worlds out there that truly challenge us and because Goku taught us all Teleportation we can come back Home whenever we want" All the Z-Fighters agreed as they were itching for a challenge probably because of the Zenkai ability they got from Goku and it was decided they would all head out and they decided to go a week from now to get what they need with them etc.
They didn't need to wait for the Ship to be made as Dr Briefs made one 3Years ago filled with everything you would need for Goku. This was the first time Gohan and Trunks were going to fight someone other than their father Goku, they were both pumped up to fight and gain Battle Experience.
Meanwhile in Space Vegeta was now preparing to go to Earth while getting his Pod he bumped into Cui by accident, this triggered Cui and he said, "Watch where your walking short-stack, wait.... that Hairline it's the Prince Of all Saiyan's Vegetable I mean Vegeta" This annoyed Vegeta but he did not answer or fight back instead walked off thinking the 'Better Person walks away'however Cui quickly got into his stance and launched a punch at Vegeta this sent Vegeta Flying "Snap...." Vegeta charged at Cui with a head butt going straight through Cui's body in absolute brutality.
Knowing he can't stay here any longer he started killing off everyone in the base and got a Pod after putting in the co-ordinates he soon started to get in and fell asleep after a while sleeping peacefully while dreaming about being Emperor of the Galaxy.
A week had passed and the Z-Fighters had arrived at the designated location of the spaceship takeoff they had got everything they'd need and soon headed in when they all were in, the ramp and doors shut tight what they did first was all use a Gravity ring and put the gravity to 50x times gravity and then headed into the Gravity chamber which could go up to 400x gravity and they set the Gravity to about 30x while still wearing their Rings which was on 50x gravity this put strains on their bodies but they began to train, first doing some stretches then some sit ups and push ups and after that each person went into a space of their own and started to practice their Stances and their fighting styles.
Piccolo had improved upon the Son Clan Fighting Technique and remade it calling it the "Makai-Son Combat Technique" Gohan and Trunks were also copying Piccolo's stance as Goku told them to learn Piccolo's "Makai-Son Combat Technique" so that they would have steady foundations as well as being versatile in every way within a fight.
The "Makai-Son Technique" was based on Gohan's own Stance which were learnt by Goku who passed it on to Piccolo and his kids
The "Makai" part in it was basically being more aggressive and not letting your opponent get the upper hand within a fight
And it was also focused more on the actual moves and the immediate power within them than some flashy moves with no real effect in battle.
After copying Piccolo for a while Gohan said to him, "Uncle Piccolo can I practice with you I want to be stronger than Dad and you and the only way I can do that is if I train more"
Piccolo was somewhat amused, Gohan was his favourite Nephew due to him beingmature for his age and because he was also hard working unlike Trunks who never really trained due to him being born with a high Battle Power that increased by half of his current battle power every Year (example: he was born with 13 million Battle Power, the next year with no training it becomes 19.5 million the next year after that is 29.25 Million, this is due to the Legendary Super Saiyan Bloodline, Gohan has it as well but he always trains to become adjusted to his new battle power further increasing his power due to him gaining strength when Battling)
Trunks with his Blue crab-like hair headed back to his Father saying, "Ugh I can't comprehend any of their moves father they are all too profound, it's not fair how can Gohan instantly comprehend Uncle Piccolo's stance as if he was destined for it to be taught to him yet I can't even copy a move properly"
Goku replied, "It doesn't matter Trunks You have to worry only about yourself before worrying about others, it doesn't matter if you can't comprehend the moves I am here for you everyone is here for you I'm sure all your Uncles would be willing to help you regardless if you can't comprehend it properly, stop worrying about the Present and look towards the Future. I know that you've never really trained but so what we can start now I'll teach you one of my very own techniques I've taught Gohan already but he's only in the 2nd level (Gohan and Trunks don't have Instant Mastery) but I know you'll do better than Gohan as I feel it suits you"
Goku then gave him The "Dragon Phoenix Prajna Physique" manual into his head by using his telepathy he ingrained the technique and all the levels in Trunks head and Trunks felt like gained knowledge about some Technique he read through it in his head and saw "Level 13 Yin Yang Integration": 'You need only One flick of a finger to destroy Multiverse's ' when he saw this he started jumping up and down in excitement.
Trunks Started to train using the Manual the first level was "Enter The Dragon" and he started to follow each movement slowly and precisely. 2.5 hours had passed and Trunks had mastered the First Level, to confirm this you should see a Jade Green Chinese Dragon on the Left or Right Fist Of the individual giving out Green Flames from either hand.
Trunks was a genius as if born for this Technique and the thing was every time he injured himself and broke bones and tested muscles in his body The Majin Buu Bloodline would heal him up giving him many Zenkai's in the short timespan of only two and a half hours, Goku was amazed at this he never needed to really train techniques and forms due to Instant Mastery, but he could tell Trunks was going to be seriously overpowered what Black Goku he's nothing.
Goku stared at the childish face of Trunks who was absolutely identical to him other than Trunk's Hair colour being Navy Blue there was no difference between them, Gohan was the same he was absolutely identical to Goku there were no Differences like Trunks due to the Hair, it was funny seeing 2 of him one with black hair and the other with navy blue hai