Disclaimer: I do not own DBZ or Vegeta or Avatar, the only thing I own is the idea

Chapter 1: Vegeta's Pain

The first year since the defeat of Majin-Buu at the hands of Goku, Vegeta, and Hercule. There were only two surviving saiyans left since the tyrant, Frieza, destroyed them and their planet years ago. A certain saiyan prince was sobbing in his training room. He, one of the two surviving full-blooded saiyans, the saiyan prince, prince Vegeta was suffering in his 5000 gravity room. He had ascended to a super-saiyan 2 some years ago against the ultimate android known as Cell. He had seen his future son die and couldn't do nothing about it. He felt extreme pain. He felt worst knowing he had to rely on his rival's son, the offspring of the one who surpassed him in becoming a super-saiyan and defeating the one who's been torturing him since childhood, the tyrant Frieza. Goku had also been a low-class saiyan warrior who had defeated Vegeta, THE PRINCE OF ALL SAIYANS. How did you a low-class defeat the ELITE PRINCE OF ALL SAIYANS, who has surpass the king. Then, when I did surpass you in strength, once you healed, you again passed me in power as a super-saiyan 3. In which I, the prince of all saiyans could not. Kakarot, a day real soon, I shall defeat you, I shall! Meanwhile, the fire nation was invading Ba-sing-se. they were under the order of the banished prince, Zuko, who was attempting to regain his honor by capturing the avatar, Aang. The Earth-kingdom city of Ba-sing-se was a peaceful place, until the Avatar visited his friend Boomy.