It's A Mad, Mad, Mad, Mad Saiyan
After Zarbon's lifeless corpse falls into a lake, Krillin and Vegeta make small talk before Vegeta demands the handover of their Dragon Ball, allowing him to possess all seven. Knowing he can't beat Vegeta, Krillin hands it over. Vegeta decides to spare Krillin and Bulma before flying off. Bulma yells at Krillin for just letting it go like that, setting Krillin off. He goes into a tirade about how much of a bitch Bulma is.
Vegeta starts to sing "Don't Stop Me Now" by Queen as he flies to his other Dragon Ball. Little does he know that Gohan is flying his direction with said Dragon Ball, and is also singing the same song. They detect each other, and Gohan hides. After some threats, Gohan emerges, having hidden his Dragon Ball. He passes his Dragon Radar off as an antique pocketwatch. Although Vegeta is suspicious, he talks sweet to Gohan, saying the last of the Saiyans need to look out for each other, saying he can "help" the younger one. Creeped out by Vegeta's demeanor, Gohan says, "I need an adult." Vegeta responds, "I am an adult." before kneeing Gohan in the gut. Vegeta says he only did that to take out pent-up frustration held against Goku, then flies off, leaving Gohan and his Dragon Ball.
After he finishes his tirade, Bulma smacks Krillin. Gohan arrives shortly after with his Dragon Ball, and tells the others they need to find a new hiding place; Vegeta will find out that Dragon Ball will be missing shortly. Vegeta goes underwater where he hid his other Dragon Ball, and looks for where he hid it. Unable to find it, he begins to put two and two together, figuring out that Gohan's "watch" was most likely a Dragon Ball locator. Ghost Nappa appears, and tells Vegeta that Gohan took the Dragon Ball. Vegeta explodes out of the lake, letting out the strongest scream of all time.
It's so strong, not only can Gohan hear it, but Krillin can feel it.
It's so strong, Frieza hears it.
It's so strong, Goku hears it in space, in his spacecraft.
It's so strong, King Yemma hears it in the next world. He thinks it's his estranged wife.
It's so strong, that 20 years later it reaches Earth, where it is heard and recognized by his as-yet-unborn son, Trunks.
At their new hiding place, Krillin tells Gohan that he needs to visit Guru, so he can "touch you and pull things out of you that you never knew you had". Gohan again says he needs an adult. They fly off, to Bulma's chagrin. At his spacecraft, Frieza tries to think of what he will do when he achieves immortality. One of his mooks, Acai, reports that the Ginyu Force will arrive in five minutes. He also says that the remaining officers are unionizing due to the random execution of their ranks. Acai is promptly incinerated. Frieza then thinks of taunting Cooler with his immortality.
As they near Guru's, Gohan and Krillin detect Vegeta getting near. Krillin tells Gohan to go ahead. When he arrives, Guru is annoyed that another human has come to his lookout. Gohan says Krillin said Guru could help him by "touching" him. Guru responds, "Do I look Catholic?" Nail replies he means unlocking his potential. Guru puts his hand on Gohan and describes the process similarly to Krillin's description. Once more, Gohan says, "I need an adult." Guru begins to unlock his potential.
Outside, Vegeta reaches Krillin, and is so angry he has bloodshot eyes and is mumbling incoherently about needing his Dragon Ball back. He sees Ghost Nappa again, who tells him his rage broke. When Krillin tells Vegeta he doesn't have the Dragon Ball with him, his right eye pops and turns solid red. He approaches Krillin, but the sudden pop of Gohan's power level rise snaps him to his senses. He asks where Nappa is, then is reminded by Krillin that he killed Nappa on Earth. Krillin, in his fear, accidentally spills that Gohan is over at Guru's lookout getting his potential unlocked. Vegeta decides to pay them a beating.
Vegeta gets to the lookout, where he encounters Nail. The two volley insults for a bit, with Nail making fun of Vegeta's height. Guru tells them to stop "making out". Gohan emerges and tells Vegeta that he is now as strong as his father was when they fought on Earth. Vegeta retorts he's still not as strong as Zarbon or Dodoria. Gohan says he now knows how Krillin feels. Krillin responds, "Sucks, doesn't it?"
Vegeta gloats that, besides Frieza, he is now the strongest being on planet Namek. Guru then tells them there are five extremely strong power levels approaching the planet...and they are all incredibly flamboyant. Vegeta instantly freaks, knowing exactly who he's talking about.
The Ginyu Force has arrived.
In the stinger, Goku reaches into the fridge, and pulls out beer, then "Powerthirst" energy drink, then a jar of Planters nuts ("I can't drink these! These are nuts!")... then "Team Four Star Soda", which he says looks delicious, and is high in calcium.