Ten years after Dragon Ball Z, Emperor Pliaf locates the mysterious Black Star Dragon Balls and summons Shenron. Goku goes to stop him but Pilaf accidentally Wishes Goku into a kid again! The Black Star Dragon Balls scatter across the universe, Pilaf runs away and Goku learns that the Black Star Dragon Balls must be returned to earth within a year, or Earth Will Be destroyed. 

Bulma builds a spaceship so Goku can search for the Black Star Dragon Balls. Trunks reluctantly accompanies Goku. But Goku's Granddaughter Pan (Gohan and Videl's Daughter) stows away.

When the ship malfunctions, the crew crash-lands on the planet Amiga. It's ruled by Don Kea, a despot who forces Amiga' s inhabitants to rent everything. There a robot eats the Dragon Radar and thier Spaceship is reposed!

The trio captures the robot, and succeeds in stealing their ship back after tussling with Ledgic, Don Kea's bodyguard. Goku and company escape, But they are now fugitives!

As the group confronts Don Kea, Ledgic arrives and battles Goku one-on-one! Ledgic recives an ass kicking, and Don Kea Stops his renting system. The robot has merged with the radar, so the trio takes him along in search for the Dragon Balls.

The Crew crash-lands on a planet where everything is huge! The dragon Ball is in an apple , But a giant eats it and gets it stuck in his teeth. Goku blats the tooth and Ball - out of the giant's mouth. The trio decides to name the robot "Gylu."

On the next planet, a woman has the Dragon Ball on her ponytail. Zu-nama, a creature who causes earthquakes, demands that the woman be his bride or he will destroy the village. So Trunks disguises himself as the Bride!

Zu-nama brings Trunks to his cave, and gets drunk just as the other heroes arrive. They find out Zu-nama doesn't cause earthquakes, he just predicts

The thief, Bon Para, Lures the trio to Planet Beelay, home of the dangerous Doma. Then he brings the Ball to the evil Mutchy-Motchy on Planet Lude while Goku and crew battle the Doma

Goku defeats the Doma, and Bon Para returns with his brothers for the other Ball. They do a silly dance attack, Which forces the others to dance too. Pan and Gyle search for the Ball on Paras' Ship, which then suddenly departs for Planet Lude, leaving Goku and Trunks Behind! The Doma distracts the Para brothers, and Goku and Trunks Defeat them.

The Para ship lands on Lude, and Gyle locates the Dragon Ball. Pan is led to Mutchy-Motchy's temple but is turned into a doll after she enters!.

While Mutchy battles the heroes, Doltucky, the founder of the Lude cult, takes the doll Pan as his captive. Mutchy is destroyed by Trunks, so Doltucky brings the doll-powered robot, Lude, to life!

Lude attacks Goku and Trunks. The evil Dr. Myuu asks Doltucky to sacrifice Pan to Lude, to give the robot more power. Refusing to do so, Doltucky is transformed into a doll, and both he and Pan are absorbed by Lude!

Lude is now at full power! Pan and Goku simultaneously fire at Lude's heart, Destroying it. The sacrificed souls return to their bodies, and the heroes gain the second Dragon Ball!

Pan's feelings are hurt when Trunks suggests that Goten would be more useful. When the drew lands on a desert planet, Pan runs away. Doltucky is killed for his failure

The crew visits Gylu's home world, where robot commandos capture them and Gylu and the commandoes take Goku and Trunks away, and Pan is left Stranded

Gylu, who was created by Dr. Myuu, turns over all of his data on the heroes' fighting patterns to Rirudo. Pan reaches the others but is attacked, making Goku get mad - and break free!

Thanks to the data Gyle provided, the robot commandos beat Goku, merging into one super robot called "Mega Cannon Sigma." But Gylu has not got the complete data on Goku, and then Goku finishes them off, Easily 

Rirudo arrives, transforms Trunks into a marionette, teleports him to Dr. Myuu, and then battles Goku! When Goku goes Super Saiyan, Rirudo upgrades to "Hyper Mega Rirudo"!

Rirudo transforms again and gains control of the whole planet! Pan confronts Gyle in the tower, but Gyle teleports her back outside, with the three Dragon balls.

Rirudo Transforms Goku and Pan into Marionettes transporting them to Myuu. Gylu frees them both; Trunks shows up and explains that he and Gylu had planned everything to figure out Myuu's secret creation!