It's The World Building Thread!

[Kaden]

2002 - The Lookout Saga - Piccolo fuses with his alter ego Kami and father Pikorro Daimoun to form the incredibly powerful Kamikorro Daimoun. Using the obscene powers of his newly fused form and with the assistance of the changeling Koola and the saiya-jin Raditzu, KD launches an attack on the Lookout, home of the Earth's Guardian Dende. Vegeta, who's Super Saiyan powers were augmented by the powerful Majin enchantment, is killed by Kamikorro Daimoun in direct combat and, with the Earth's strongest warrior defeated, the Namekian lays claim to the planet Earth.

2002 - Training in Hell - Unwilling to submit to the rule of a Namekian, Raditzu turns on Kamikorro Daimoun in an attempt to take Earth as his own. With even less strength than the Majin'ed Vegeta, though, the long-haired saiyan is sent to join his Prince in hell. There, however, the two defeated saiya-jin learn of a way they might combat KD's fearsome power.

2003 - Fusion Revival! The Saga part 1: Trunks Unified - On Earth, Trunks, the son of Vegeta encounters the twice fused Namekian ruler of Earth, but is left to the same fate as his father. As life slips from the young Trunks, a figure approaches him, claiming to be himself from another timeline. Bearing a pair of Potarra Earrings, an accessory spoke of only in legends, Future Trunks permanently fuses his body with that of his dying, younger self. Now imbued with strength even greater than that of Kamikorro Daimoun, the demi-saiyan leads an assault on the terror of Earth.

2003 - Fusion Revival! The Saga part 2: The Rise and Fall of Trunks Unified - With the enormous power granted to him by the Potarra fusion, Trunks Unified defeats Kamikorro Daimoun, severing his head and eradicating his body with an impressive display of ki. Enraged by his leader's death, Koola attempts to avenge Kamikorro Daimoun, but proves to be a poor match for the fused Saiyan. As Koola and Trunks fight, Raditzu and Vegeta return to Earth along with Dende. Vegeta takes Dende to a safe location while Raditzu interrupts Koola's fight with Trunks, warning both parties that they should leave. Unknown to all, however, KD's power had been so great that he was able to regenerate from nothing more than his severed head. The Namekian assaults Trunks Unified, sapping his strength to regain his own. Though Trunks achieves a Super Saiyan ascension, it is not enough to make up for the power that KD had stolen.

2003 - Fusion Revival! The Saga part 3: Saiyans Strike Back - With the arrival of Vegeta and the Lookout cleared of Koola and Trunks, the stage is set for a rematch. Using a technique learned in the afterlife, Vegeta and Raditzu fuse into Vegitzu, a Super Saiyan of untold power. Though the power he sapped from Trunks made him a formidable foe, Kamikorro Daimoun was unable to defeat the fused saiya-jin. With their enemy defeated, Vegeta and Raditzu used the Dragonballs to restore the Lookout to its proper form and repair the damages Kamikorro Daimoun had wrought on Earth.

(Side-note: That three-saga arc is my favorite series of events that's ever happened on Chubbs.)

2004 (I think) - Dante's Abyss ends with an assault on its contestants by an unknown force. Furiza, leading the changeling empire, hosted the tournament in an attempt to wipe out the galaxies strongest warriors with a single, crushing stroke and pave their way for their conquest of Earth and the nearby planets.

2004 - The Takeover Saga - Koola and Furiza fuse into the power Kuriza and lead an attack on Earth, taking over the planet for themselves. Though a powerful resistance fights against the changeling and his armies, it is the weakest warrior present that, through the use of a Dragonball, enables the changeling's defeat.