Seven years passed since the Cell Game.
Much has changed during this era of peace. Gohan is a student of Orange Star High School,
and became the boyfriend of Videl, Sataan's daughter. Trunks is now eight years old. His
best friend is Goten, Gohan's little brother who is one year younger than Trunks. Klilyn
married Android #18 and became the father of Marron. Vegeta settled down after Gokou's
death. The peace will now last long...
Gokou is competing in a fighting tournament of the dead. His meets a stalement with his
new friend and opponent, Paiku-han. On Earth, Gohan is training Goten and Vegeta is
training Trunks. Gohan and Vegeta become shocked at the fact that Goten and Trunks can
reach Super Saiyan stage at such young ages.
There is another Tenkaichi Boudoukai on Earth. Goten and Trunks want to attend in the
competition, but are banned because they are too young. However, they steal a competitor's
costume and wear it. They battle Android 18 and their disguise is revealed. Piccolo faces
someone known as Kaiou-shin, but freezes upon sensing his opponent's power. Gokou is
granted a single day of life to fight at the tournament so he is also present. It is
Gohan's turn to compete. He has assumed the identity as a masked crime fighter known as
the Great Saiyan-Man. Gohan powers up and turns Super Saiyan mode. This blows off his
disguise and the audience learns that the Great Saiyan-Man is really the nerd Gohan.
Spopobitch and Yamu, two competitors with a "M" on their foreheads, fly out to
the battle ring and approach Gohan. Then, the two mysterious men take out a lamp and use
it to absorb Gohan's energy. Gohan falls unconsicous, Spopobitch and Yamu fly away, and
everyone else become shocked and wonder what just happened.
Kaiou-shin and his partner approach the Z warriors and revive Gohan. Then, they tell
their story. They are really godly beings beyond Kaiou and are here to stop the plot of
Babi-di and Darbura. Babi-di is an ugly little being who wants to destroy all life just
for the fun of it. Darbura is the Prince of Darkness. Babi-di and Darbura are allied at
the task of reviving someone called Boo. To do so, a lot of energy is needed. Everyone
learns that Spopobitch and Yamu are zombies of Babi-di. That is why they absorbed Gohan's
energy. Allowing Sopopobitch and Yamu to attack Gohan was part of the plan to follow them
to Babi-di's lair. A new terror breaches over the Earth. The Z warriors decide to help
Kaiou-shin for the sake of their planet, and follow Spopobitch and Yamu to Babi-di and
Darbura's lair.
Babi-di and Darbura's minions are killed in the battles to come. Our heroes face
Darbura now. Unaware of Darbura's ability to "stone", Klilyn and Piccolo are
turned into stone. The only remedy to the curse would be Darbura's death. Darbura is
eventually killed and Klilyn and Piccolo are restored to normal.
Learning that becoming Babi-di's slave will make him stronger, Vegeta volunteers to
become Babi-di's slave. A "M" appears on Vegeta's forehead and he turns evil
once again. Majin-Vegeta looks forward for another battle against Gokou and hopes to
defeat him once and for all.
Vegeta's power donation to Babi-di grants enough energy to revive the fat being known
as Boo. Boo is re-awakened and Babi-di rides around the city on top of him. Cities begin
to get terrorized.
Majin-Vegeta knocks out Gokou, but realizes that good triumphs over evil. He regains
his sanity and truely becomes good. Majin-Vegeta goes off for Boo and fights him. Boo is a
lot stronger and has the advantage. In a final effort to defeat Boo, Vegeta
self-destructs, hoping that his sacrifice will take Boo down with him. To his dismay, Boo
survives.
Even in Super Saiyan level 2, Gokou is unable to defeat Boo. Rage increases, and Gokou
reaches Super Saiyan level 3 for the first time! Meanwhile, Bulma gathers the dragonballs
to revive all the civilians killed by the Majins since the Tenkaichi Boudoukai.
Boo grows tired of being Babi-di's slave and kills him. Then, he purifies himself by
fission and splits into two beings. One is pure good, and the other is pure evil. The two
Boos fight and the evil one turns the good Boo into a cookie. The cookie is eaten, and Boo
powers up in a body transformation. The fat Boo is now leaner and more muscular.
Meanwhile, Gohan heads to Kaiou-shin's planet to receive training. As a sign of
respect, he wears the Kaiou-shin suit. Gohan pulls out the legendary Z Sword and begins to
train under Dai Kaiou-shin, the Elder Kaiou-shin. Gohan is learning how to use his hidden
powers without getting angry to go Super Saiyan mode.
Kaiou-shin reflects at his past. When he was young, he lived in peace with his family
at his home planet. Then, an evil sorceror, Babi-di's ancestor, used Boo to terrorize. (At
the time, Boo was smaller than how he appears during the current section of the series.)
Boo killed all of Kaiou-shin's family members. The Kaiou-shins cursed Boo into his fat
form and made him dormant. Kaiou-shin, his partner, and Dai Kaiou-shin are the only
Kaiou-shins left. Now, years later, Boo has been revived.
Everyone is at Sky Palace (Dende and PoPo's palace) except Gohan, who is
still training under the Kaiou-shins. Gokou taught Goten and Trunks the art of fusion.
Goten and Trunks fuse and become Gotenks! Then, he teleports to Kaiou-shin's planet and
watches everything through Kaiou-shin's crystal ball.
Boo heads for Sky Palace to look for the "strong" being he sensed. He needs
to absorb more powerful beings to be restored to his original form, the stronger form that
he was in before the dying Kaiou-shins cursed him. The "strong" being in which
Boo searches for is Gotenks. Goten and Trunks are training in a room inside Sky Palace.
Piccolo tricks Boo into waiting for the boys to come out. Time passes by slower in the
room, so it will buy some time for the boys to train more. Chi-Chi, seeing Boo, goes up to
him to scold him for killing so many innocent people. Boo turns Chi-Chi into an egg and
squashes it.
Boo grows tired of waiting and threatens to be taken into the room in which Goten and
Trunks are in, or else he will kill everyone at Sky Palace. Piccolo, knowing that he is
too weak to fight Boo, takes Boo to Goten and Trunks with the hope that the boys have
become strong enough to fight Boo.
Goten and Trunks fuse into Gotenks and fight Boo. Gotenks is able to stand up to Boo,
but neither side is winning. Piccolo blasts the doorway in the room. Then, he tells that
without the exit, everyone will remain trapped in it forever so Boo can no longer kill any
more people. Gotenks argues with Piccolo that they too have becomed trapped. Boo creates a
fireball that produces a portal exit. He exits the room and returns Sky Palace. Gotenks
and Piccolo look at each other in grief; they are not trapped and Boo is free. Super
Saiyan Gotenks tries to create the same fireball that Boo created, but is too weak to. He
powers up and reaches Super Saiyan level 3. Now much stronger, he is able to produce the
portal. Piccolo and Gotenks exit the room and face Boo once again.
In the battle followed, Sky Palace is destroyed. Super Saiyan level 3 Gotenks is
overwhelming Boo and winning. Boo is thrown back to Earth. Gotenks and Piccolo return to
Earth to search for Boo's body. Boo survived the attack and reappears. Gotenks prepares to
fight again, but the fusion wears off. Goten and Trunks unfused are too weak to fight Boo.
Gohan completes his training with Dai Kaiou-shin. He chooses a change in clothes to
wearing his father's suit and wishes everyone goodbye. Gokou wishes his son luck, but
envies that he cannot help because he is dead. Kaiou-shin's partner teleports Gohan to
Earth.
Gohan appears in time to save Goten, Trunks, and Piccolo. Gohan beats Boo and Boo
self-destructs. Thinking they won the battle, Gohan, Goten, Trunks, and Boo fly off. They
see Sataan and Dende on their journey and take them with them. A being flies towards them.
It is Boo! Goten and Trunks fuse again and are in Super Saiyan level 3. Eagerly wanting to
fight again, Gotenks boasts about beating Boo. Taking advantage of the distraction, Boo
absorbs Super Saiyan level 3 Gotenks and undergoes another body change. Now a lot
stronger, Boo overwhelms Gohan. Boo throws a fireball at Gohan. Gohan tries to block, but
another fireball pushes Boo's fireball away from Gohan. The ally is Tenshin-han. However,
Boo prepares another fireball
In the judgement court, King Yemma grants Vegeta life so that he could help save the
planet. In Kaiou-shin's planet, the Kaiou-shins tell Gokou about fusion earrings.
Kaiou-shin and his partner demonstrate. Each partner wears one of the earrings and the to
permanently fuse. The earrings are given to Gokou. He is to give one to Gohan so that he
and Gohan could fuse to beat Boo. To bring Gokou back to life, Dai Kaiou-shin exchanges
his life for Gokou. Gokou's halo disappears, and Dai Kaiou-shin falls dead. Then, he
re-awakens with a halo on top of his head. Gokou thanks everyone and teleports to help
save Earth.
Boo is about to throw a huge fireball at Gohan. Gokou teleports to the scene and throws
a fireball at Boo. Boo is sliced and his legs and lower part of his antennae are cut off.
Gokou tells Gohan about the fusion earrings and throws one to Gohan. Gohan catches it and
prepares to wear it. The cut off part of Boo's antennae engulfs Piccolo and Boo changes
into a stronger form again. The cut off lower body of Boo walks and kicks Tenshin-han
unconscious. Then, it engulfs Gohan and Boo powers up again. Gokou feels despair again.
Vegeta appears and aids Gokou. Gokou tells Vegeta about the fusion earrings
and Vegeta finds the earring dropped by Gohan when Gohan got absorbed. Gokou and Vegeta
are pulled together and become Vegetto!
Vegetto beats Boo, but purposely gets absorbed by Boo to save their comrades. The
absorption cancelled out the effect of the permanent fusion and Vegetto splits back into
Gokou and Vegeta. They find and rescue Goten, Trunks, Gohan, and Piccolo by carrying the
bodies and escaping through one of Boo's pores. Good Boo is also still in Boo's body. As
the characters left Boo's pores, they returned to their original size. Meanwhile,
absorbing Vegetto had given Boo enough energy to complete his phase change. He powers up
as the escapes from his body takes place, and returns to his original form.
"Original" Boo is back.
Boo does a giant fireball and blows up the Earth. The newly fused Kaiou-shin teleports
to help Gokou teleport Vegeta, Trunks, Goten, Gohan, Piccolo, Dende, and Sataan to safety
in Kaiou-shin's planet. Boo teleports and follows Gokou. Gokou and Boo battle. Gokou gets
beaten and is weak, so Vegeta joins the fight. Vegeta admits that Gokou is better than him
for the first time and then fights Boo. Boo beats Vegeta and is about to kill him, but
Sataan pops up and threatens Boo. Boo attacks Sataan but Sataan dodges the punch. All of a
sudden, Boo goes in pain and spits the good fat Boo out. The two Boos fight and the good
Boo gets beat unconscious. Gokou and Vegeta continue to face Boo.
Vegeta tells Kaiou-shin to gather the Namek dragonballs. He does so, and makes the
first wish to restore the Earth. The second wish revives all the civilians that Boo
killed. The third wish is saved for later. Everyone is back on Earth except Gokou, Vegeta,
and Boo. Gokou begins to create a Genki Dama while Vegeta distracts Boo.
Our heroes on Earth tell people to raise their hands. Doing so will donate energy to
Gokou's fireball. However, no one listens. Sataan, still famous after the Cell Game,
raises his hands. Following the example of their idol, everyone on Earth raises their
hands. Gokou gets enough energy for his fireball and he fires it. Boo is too strong to get
blasted and holds the fireball back. Kaiou-shin makes the last wish from the dragonballs
to restore Gokou's energy. Gokou's power restores from his weakened state and he uses his
revived strength to strengthen his fireball. Boo, unable to repel Gokou's Genki-Dama, is
killed by the fireball. Our heroes have won the battle.
Fat Boo awakens. Our heroes debate on whether or not to kill him, but Sataan pleads
that this Boo saved his life. Boo is spared and joins the Z warriors.
Ten years later...
Goten and Trunks are teenagers. Gohan married Videl, and the two became parents of
five-year old Pan. Gokou wished the evil Boo back to life to fight him again. The wish
reincarnates Boo into Ubuu; all evil cleansed. Gokou is training Ubuu. There is peace on
Earth...