Goku declined Radditz's invitation to join him then Radditz tried to take Gohan and Goku attacked Radditz Goku won but Radditz distracted Goku and flew up the the moon so he could become a great ape with his new power he managed to kill Krillin but he accidentally destroyed his space pod which made Goku mad then Radditz's scouter broke Goku then used a kaioken x3 to break every bone in Radditz body.
Radditz woke up wondering why he was alive. Goku just told him "My master Kami believed everyone should have a second chance."
Everyone then gathered the dragon balls to wish Krillin back to life but then Kami through King Kai said that Krillin should use this chance to train then Radditz tried to steal the wishes "I wish I was Immorta" But Goku knocked him out after that a year passed Radditz was forced to live a normal life he lived at near Goku's house (ChiChi wouldn't let him live in their house.) if he tried to kill anyone Goku would stop him.
Now Krillin had decided he had enough training but before he was revived he heard something interesting "You can't tell him about Freeza!" "But King Kai it's my home planet!" "You and I both know that If Goku figures out he'll try to fight him and he's not strong enough to beat Freeza! Apparently King Kai and Kami were too busy talking that they hadn't sensed Krillin when he asked them about it they both said nothing.
After Krillin was revived (Radditz was smart enough to not try to steal the wish again.) Krillin was at the check in station with Mr. Popo when he heard "Krillin this is a new technique I've been working on it's a telepathic message King Kai didn't want me to tell you this but you're far enough away so he can't detect this message Now I wan't you to tell all of this to Goku and everyone else I am of an alien race known as Namekians Don't worry the're not like Piccolo A powerful tyrant know as Freeza is at the planet Namek he's even stronger then Goku I'm begging you to save my race you don't even have to fight Freeza just get them out of there."
Krillin told this to everyone Bulma said just ask the dragon to revive all the Namekians that died to Freeza and then use the dragon balls to bring the Namekians to Earth (The dragon grants three wishes now) But Goku said he wanted to fight Freeza Radditz then yelled "ARE YOU INSANE FREEZA'S FAMILY IS THE STRONGEST IN THE UNIVERSE." But Goku ignored him so he used the second wish to wish everyone but the non fighters to Namek "GREAT JOB IDIOT HOW ARE WE GONNA GET OUT OF THIS PLANET NOW WE DON'T HAVE A SPACESHIP OR ANYTHING!" Radditz continued to yell But then a capsule fell from the sky Gohan opened it to see it was a space ship.
Bulma had been smart enough to use the third wish to wish that Goku and everyone else would be given a spaceship.
"Who's there" Said a stranger that looked like Piccolo "Piccolo!" said Yamcha "No this is someone else." Goku said "Nail it's ok" said a giant namekian "They all have no evil intentions except for that one over there." he pointed to Radditz "Why have you come here." said Nail "Come here I'll read one of your minds." said the giant Namekian Gohan asked what his name was his he told them to call him the grand elder.
After the grand elder read Goku's mind he said "That is a foolish idea I have seen your mind and I've seen how strong you are and as you are now you stand no chance against Freeza." "But if I unlock your potential then you may stand a chance." he put his hand on Goku Goku felt a huge power surge through him.
After that Gohan asked if the grand elder could unlock everyone's potential and he did he didn't want to unlock Radditz potential though because he knew Radditz wouldn't want to help but Gohan and Radditz made a deal If he helped them now the grand elder would unlock his potential and after that they would give him a spaceship so he could go where ever he wanted Radditz agreed.
So everyone went to where Freeza was "You broke all my scouters! Dodoria kill him!" Dodoria was about to kill the Namekian when Tien stopped him "Why you!" Dodoria began to fight Tien Radditz joined the fight also "It's the monkey!" said Freeza Yamcha led the Namekians to safety.
Then Krillin started fighting Zarbon "KAIOKEN X2!" he was easily beating Zarbon but then he transformed "I guess I'll have to use a higher kaioken." "KAIOKEN X6!" Krillin then started to easily beat Zarbon but then his kaioken ran out "What are you going to do now!" said Zarbon but then Krillin pulled out a sensu bean and ate it.
At the same time Goku began fighting Freeza "Who might you be?" asked Freeza "I'm Goku and I'm from earth!" "An earthling huh this'll be easy." "KAIOKEN X
5!" Goku began to match Freeza's first form "How is he matching my first form!" Freeza thought "KAIOKEN X8" Goku was too fast for Freeza and he started beating him.
"Wait this is only my first form this is nowhere near my full power if you let me power up I can go at full power!" Freeza said in desperation Goku thought about this for sometime and then he powered down "Krillin give me a senzu bean." Goku asked Krillin who had killed Zarbon with a kaioken x10 threw the sensu at Goku "What do you even need this for anyway you can beat Freeza right now." But Goku didn't eat the sensu he gave it to Freeza!
