Toriyama, Akira

Collects no. 13-15 of "DragonBall Z" comics in which Son Goku, having brought down the nefarious Dr. Gero's organization years earlier, is targeted by Gero, who has long been concocting his plan of revenge.

Gohan surpassed his father Goku in the battle with Cell, making Gohan the strongest warrior in the universe. Years after the battle with Cell, Gohan has made good on his promise to protect Earth from evil but his mother insists that he get a good education, so Gohan comes up with a plan to be a hero and a regular kid at the same time.

As the battle of Namek turns the entire planet into a fireball, Goku and Freeza fight it out to the end, and Goku makes a fateful decision.

The Lord of Lords seeks Goku, Gohan, and Vegeta's help in preventing the evil wizard Bobbidi from resurrecting the imprisoned djinn Boo, but as they prepare for battle, an enemy lurks in their ranks.

Hercule's daughter, Videl, takes advantage of her new ability to fly; Trunks and Gohan battle Goku, who has returned from the dead for one match; and two more otherworldly visitors enter the tournament, wielding the power of the heavens on a special mission.

Goku continues to battle Freeza to see who is the strongest being in the universe.

With Goku almost dead from a virus, Super Saiyan Vegeta jumps in to lead the battle against world-destroying androids and the ever-present enemy Piccolo.

Boo escapes from his master Bobbidi and begins to rampage the earth; however, Trunks and Goten merge with one another in order to stop Boo before he destroys all the cities and people on the planet.

The future that the time traveler Trunks forecast three years ago is happening. Dr. Gero has unleased his androids to get revenge against Goku for defeating the Red Ribbon Army.

Goku and all of his allies and enemies must unite against Freeza, the strongest being in the universe, who is seeking the Dragon Balls to wish for immortality.