Dragon Ball GT Sagas
Pilaf accidentally turns Goku back into a kid using the Black Star Dragon Balls. Those Balls were created back when Kami and Piccolo Daimao were one Namek, so they are more powerful than the previous ones on Earth. These Dragon Balls also spread across the galaxy, and has the most unforetunate side effect of blowing up the planet it is used on in a year if not brought back and sealed.
Well, Trunks and Goten were chosen to accompany Goku to retrieve them, but Pan sneaks in and Goten was left behind. They crash land on the first planet, Amiga, and find Gill, who eats the Dragon Radar, but becomes one, so he's taken along. Amiga is ruled by an unjust king, Don Keo, and the team winds up overthrowing him before they can leave.
On a world where everything is giant, they find the 4 star ball. On a world where a con man is terrorizing some villagers, they find the 6 star ball, and expose the con, plus save the village from a volcano. But the 6 star ball is stolen by Bon Para. The team chases them into Planet Beefay, but loses them and finds giant worms named Doma. After they beat the worms, the Para Brothers, force them to dance, but the team breaks out of it soon enough.
They go to Planet Lude next to retrieve their stolen Dragon Ball, but Pan is turned into a doll. Goku has to face Mutchy, then they face Lude (created by a Dr. Myuu). With the help of Pan, they beat Lude, and the next world they come to is a desert planet. There they find the 5 star ball, and Pan and Gill develop a bond.
Next they arrive on Gill's homeplanet, M2. There Gill betrays them over to the Machine Mutants and Dr. Myuu, and eventually all of them are turned into metal slabs. After that, Gill rescues them, and it turned out to be just a ploy developed by Trunks and Gill to expose Dr. Myuu's secret.
The team tries to destroy Bebi, but he escapes. They meet him again on Planet Kitai, and he possesses Trunks, but he is forced out, and then he escapes. Bebi goes to Earth while the others continue the search for the Dragon Balls. Bebi meets and possesses Goten, then Gohan, and finally Vegeta, all the while leaving eggs in previous possessions to remain in control of them.
The team makes it back to Earth and hand the Dragon Balls back to Dende. They all go home, but found everyone is an enemy. Mr. Satan and Buu are unaffected, and they warn Goku that they are only possessed. Goku and Bebi-Vegeta face off, but Goku is blown away.
But Kaioubit saves him at the last second, only to accidentally drop him in Sugurko Space, where he has to play a giant board game with Suguroku and win to leave. Meanwhile, Bebi uses the Black Star Dragon Balls to create a Planet Tsfuru, and starts to transport everyone there to be his new Tsfuru-jins.
Goku discovers Suguroku is a cheat and the Space collapses, so they escape, then teleported by Kaioubit to safety. On the Kaioushen homeworld, Rou Kaioushen offers training so Goku can beat Bebi. On Planet Tsfuru, Ubuu takes on Bebi to avenge Goku, but loses. Buu saves him, and recombines with him, and the new Ubuu takes on Bebi again. Goku becomes impatient, and finds out the training was to bring his tail out, so he opts for the faster method, which is to pull out with a pair of pincers.
Ubuu tries to turn Bebi into chocolate but loses, and gets turned into one himself. Bebi eats him, and Goku's tail is pulled back out, and he arrives on Planet Tsfuru, too late. He takes on Bebi again, but loses. Then with the light of the Full Earth, Goku goes Oozaru and trashes the place. Pan helps get his reasoning back, and Goku powers up to Super Saiya-jin 4.
SSJ4 Goku takes on Bebi, and wins, but Bulma develops a Brute Ray and turns Bebi into an Oozaru. Eventually, Bebi is beaten, forced out of Vegeta's body, and escapes in a spacecraft. Goku fires a Kamehameha into the spacecraft and pushes it into the sun.
In the end, the Earth blows up, but everyone is transported to Planet Tsfuru, but Piccolo stayed behind to die (to get rid of the Black Star Balls) and the Namek Dragon Balls are used to restore everything. Another Tenkaichi Budoukai takes place, and Ubuu almost wins, but Buu convinces him not to. Peaceful times again.
Dr. Gero and Dr. Myuu meet in Hell and form an alliance. They build Hell Fighter 17 and use him and Android 17 to create a hole out of Hell into Earth. Goku is lured into Hell, while the residents of Hell escape. Goku gets trapped and faces Freeza and Cell (who were no match). On Earth, the good guys kill the bad guys, and Krillen is killed by Android 17. Eventually the 2 17's merge to Super 17 and kick the ass of all the good guys.
With the help of Piccolo and Dende, Goku escapes Hell and takes on Super 17 himself. Super 17 absorbs Goku's energy and becomes more powerful. Android 18 pops in to avenge Krillen, and Goku finds Super 17's weakness. He's locked in one position when absorbing energy, so Goku does a Ryu Ken Bakuhatsu on him, then fires a Kamehameha to destroy. Then they collect the Dragon Balls to restore everything, but they find that they are cracked.
They summon an evil looking dragon who takes the Dragon Balls and disperses them. The Kaioushens explain that each time they use the DBs, negative energy builds until they explode like this. Goku goes to beat each of them, follow by Pan and Gill so they can track them.
Ryan Shinlon (two star dragon), element of water (negative, so dirty water), was first beaten. Then Uu Shinlon (5 star dragon), element of electricity, had the team beat, but a sudden rain storm short circuited him. Ryuu Shinlon (6 star dragon), element of wind, had Goku beat, but Pan discovers his vulnerablity. Chii Shinlon (7 star dragon), element of earth, possesses Pan, but Goku rescues her and beats him.
Then Suu Shinlon (4 star dragon), element of fire/sun, who was an honorable type, and just wanted a match with Goku. Then his brother, San Shinlon (3 star dragon), element of ice, showed up and wanted Goku to be finished off quickly. He manages to blind Goku, but is still beaten. Suu Shinlon suggests to fight another day when he's all better, but Ii Shinlon (1 star dragon, no clear element) kills him.
Then Ii Shenlon beats Goku, and the others (Gohan, Goten, Trunks, and Ubuu) save him. They give Goku their energy to surpass SSJ4, and Goku beats Ii. But then, Ii absorbs all the Dragon Balls obtaining all the Evil Dragons' powers, surpassing Goku's. Vegeta comes along with Bulma and the Brute Ray, and turns Vegeta into an Oozaru, then SSJ4. Vegeta knows they still can't win, so he suggests Fusion.
They fuse to Gogeta, but ten minutes in, they unfuse, almost beating Ii once and for all. Goku manages to take the 4 star ball and swallows it. Ii Shinlon proceeds to beating the crap out of the two of them until Goku's loses his SSJ4. Suu Shinlon shows up and tries to beat Ii, but fails. Then Vegeta also loses his SSJ4, so Ii decides to blow up the whole planet.
Goku stops it, but is critically injured in the process. The others take on Ii, but to no effect. Goku re-appears with a Genki Dama, and takes energy from the entire Universe, and vapourizes Ii with it. Then Shenlon shows up, grants a wish to revive everyone, and takes Goku away to be fused with one another.
100 years later, Goku Jr and a decendant of Vegeta face off in the finals of a Tenkaichi Budoukai. Pan (now old) sees Goku in the stands watching, but he disappears before she can reach him. Goku walks out of the stadium and leaves. The End.