When Gohan was four years old, everyone was gathered on Master Roshi's island for a reunion. The party was just getting under way, when suddenly a large man with long spiky black hair and a tail landed on the island. Goku asks him what he wants, and he says "My name is Raditz. I am a saiyan, and despite your lack of a tail, I can sense that you are one too. So, Kakarot, why haven't you killed everyone on this planet yet?". "I don't know what you're talking about, but if you want to harm this planet, you'll have to go through me first" replied Goku. Raditz asked "Did you hit your head as a child?" "Yes, and I nearly died, but I don't see how that's related" replied Goku. Master Roshi then interrupted and said "Goku, there's something you should know that your Grandpa Gohan told me. He found you in some kind of metal pod, in the middle of crater, and it's obvious now that it must have been a spaceship. After he found you, you were a wild, uncontrollable child, but after you hit your head, you became a happy, loving boy." Krillin then stepped in and said "I suggest you leave now, before you get hurt." Raditz just laughed and said "I'd like to see you try." Krillin said nothing in response, and simply flew at Raditz, but as soon as he got close, Raditz lazily swatted him away and Krillin was sent flying through the wall of Master Roshi's house. Raditz then stated "It's obvious you're not a true saiyan, you don't even have your tail any more. Still, your son is still young enough to change, so I think I'll take him instead." With this, Raditz lunged over and attempted to grab Gohan, who dodged and aimed a punch directly at Raditz's chest. Raditz was unaffected by this punch, and managed to successfully grab Gohan." Raditz then took off, too fast for anyone to keep up, and left them with the parting words "If you want to see your son again, all you need to do is kill 100 earthlings within the next hour."

Yamcha, Tien and Chiatzou then arrived at the island, and Yamcha asked "Hey Goku, what happened to Gohan? And why does Krillin appear to have been thrown through a wall?" Bulma was the one to respond "Some guy showed up, claimed that Goku's real name is kakarot and he's an alien, from a race known as saiyans, and he was sent here to kill everyone on the planet. After that, he swatted Krillin through a wall and kidnapped Gohan. He was too fast for anyone to keep up with. He said that the only way for Goku to get his son back would be to kill a hundred earthlings within the next hour." Tien then responded "Wow, that sounds like one tough guy, but maybe if we team up we can take him out."

At this point, Piccolo chose to make his entrance and land on the island. He said to Goku "I ran into that guy earlier, and I know that there's no way you can beat him on your own. He's kidnapped your son, and he's standing in the way of my plans for world domination, so for now, as much as I hate the idea, I suggest we join forces."Tien then said to Goku "If you think that's OK Goku, you go ahead and we'll follow." Then Bulma added "Once Krillin recovers, I'll follow along as well, in a jet copter." Goku wasn't too happy with this, but he realized that he didn't really have a choice, and it might be the quickest way of getting his son back, and so he called the flying nimbus, and they both took off and started to follow Raditz.

Raditz was back at his space pod. Gohan's had tried to escape, and Raditz was having a hard time stopping him, and so he knocked Gohan out and stuffed him into his spacepod. Piccolo and Goku soon arrived on the scene, Raditz looked in their direction and said "My scouter shows that Kakarot is at 334, and the Namek's at 322. Piccolo and Goku then proceeded to remove their weighted clothing, prompting Raditz to check his scouter again "Now Kakarot's at 416, and the Namek's at 408. Not too bad, but still nothing for me to worry about."

Piccolo and Goku then both launched themselves at Raditz, and within a minute it was clear they were severely outmatched. Goku then asked Piccolo "Have you got any tricks that you could use use on this guy?" "Yes, I was planning on using it on you, but I need a few minutes to charge it up. Do you think you can last that long?" "I can try" replied Goku. "Goku just managed to survive the next few minutes, and Raditz noticed a power reading on his scouter "What? 1330? They must have the ability to concentrate their power into a single point. I can't block that." Piccolo then yelled "SPECIAL BEAM CANNON" and fired, but missed. Raditz was now concentrating on Piccolo, and so didn't see Goku sneak up behind him and grab his tail. Goku then asked "Piccolo, can you fire another one of those things?, and Piccolo replied "Yes." "Please let me go. I never meant to hurt anyone. You're my brother, and I promise I'll leave this planet alone if you just let me go." Goku believed Raditz, and let go of him. Raditz quickly threw Goku to the ground and began grinding him into to the dirt with his foot, laughing." Raditz then noticed a new power reading on his scouter and said "What? No Way, that kid must have woken up and his power levels growing fast." Gohan had indeed woken up, and looked out of the space pod to see Raditz's foot go through Goku's chest, at which point Gohan lost all control, and smashed his way out of the pod and launched himself at Raditz, doing some serious damage, but then collapsing from the exertion. Raditz was on the floor, just trying to stand back up and Piccolo took advantage of the opportunity to fire the attack he had charged up.

Raditz collapsed to the ground. He managed to say to Piccolo "I may have failed,but at least I got to that traitor Kakarot." Piccolo just laughed and said "Nah, they'll just wish him back with the dragonballs." Raditz looked gleeful and stated "You are a fool. This device does not just measure power levels, it also acts as a communicator. Two saiyans who are both vastly stronger than I am are now on their way to earth and will be here in a year."

Just then, Krillin, Master Roshi and Bulma arrived. Piccolo looked at them and said "There are two more like him, but much more powerful coming towards earth. They'll be here in a year so I suggest that you prepare yourself. Goku's son was the one who killed Raditz, so I'm taking him for training." Bulma then said "No you don't. I bet that you just want to eat him, you monster." Piccolo looked shocked, and then replied "No. He has vast amounts of power and potential, and could be a great help against the two new saiyans that are coming to earth. Anyway, I don't even eat, I just live on water. Besides, none of you are strong enough to stop me." Bulma was heartbroken, since Gohan had been like a son to her, but she knew there was no way that any of the Z warriors would be a match for Piccolo, and so she set about gathering the Z warriors and explaining the situation to them. Once she'd done this, she set about gathering the dragonballs in order to wish Goku back to life. As she was about to summon the dragon, she heard Goku's voice in her head "Don't wish me back just yet. Kami sent me to King Kai's planet so I could train with him. Keep the dragon balls safe and I'll let you know when to wish me back."

Author's note:

I've finally written a chapterlonger than 1000 words, and the first chapter with some serious action in it. The next chapter will be about training in preparation for the arrival of the saiyans, and then I can get to the fun stuff.

Power levels:

Raditz: 1200
Goku (With weights): 334
Goku (Without weights): 416
Piccolo (With weights): 322
Piccolo (Without weights):408
Gohan (With weights): 390
Gohan (With weights and enraged):2750
Krillin: 206
Tien: 250
Chiaoutzu: 145
Yamcha: 177
Master Roshi: 139