"Dragon Ball: Future Redemption" tells the story of Future Trunks traveling back in time and using future information to join forces with the Z Warriors to rewrite destiny. From defeating Raditz and Vegeta's invasion, to conquering Namek and defeating Frieza, to teaming up with themselves in another time and space to end Frieza and his son, and all of them broke through to the peak of Super Two when fighting against Cell.
Later, Vegetto and Gohanks were born, traveled to the GT world to master Super Four, stepped into Dragon Ball Superverse to learn Super Saiyan God and Super Blue, and touched the ultimate meaning of freedom and self. They conquered the Universal Martial Arts Association, defeated Black Vegito, united the universe to defeat the God of Nothingness and the Chaos Body, and even broke through to Super Five in AF time and space.
In the end, Vegito and Gogeta across time and space merged into Super Six Goget, purifying the evil King and becoming the "guardian beyond King". After countless time and space adventures, the Saiyan warriors finally returned to peaceful daily life, turning their belief in guardianship into a cosmic epic, and continuing to write the legend of the strong in tranquility.