Super Dragon Ball Heroes

In another timeline, a war has been raging between the Time Patrol and an evil army from the Dark Demon Realm, led by the Dark King Mechikabura. The conflict between them has reached its final battle, as the Supreme Kai of Time and a team of elite Time Patrollers have invaded the Demon Realm to deal with Mechikabura. Super Saiyan God Xeno Trunks and Super Saiyan 4 Xeno Vegito are battling against Mechikabura, while the others look on. Xeno Vegito overpowers Mechikabura, while the Supreme Kai of Time empowers Xeno Trunks's mystical Keysword with her magic, enabling him to injure Mechikabura. The Supreme Kai of Time then uses her magic to seal Mechikabura away, while...

Goku and Vegeta's training with Whis and Beerus is interrupted by the arrival of Future Mai, who tells them that Future Trunks has been captured. A mysterious figure emerges, introducing himself as Fu; he tells Goku, Vegeta and Mai that Future Trunks is trapped on a world called the "Prison Planet", a planet where warriors from alternate timelines and dimensions fight as part of an experiment conducted by Fu. The trio arrive on the planet and meet an alternate version of Goku called "Xeno Goku", who transforms into Super Saiyan 4 and attacks Goku, who reacts by transforming into Super Saiyan Blue. During the fight, Goku discovers that there is an invisible barrier around the Prison Planet that prevents them from escaping. Then Fu disappears, and the two Goku agree to work with each other to escape the planet. In the end, Fu observes the Prison Planet and tells a seemingly evil Saiyan that his time will come.

Goku and company are helpless against the evil Saiyan who is shrouded in an overwhelming large, sinister ki! Goku is enveloped by the evil Saiyan’s ki and runs wild, but an unexpected savior comes to the rescue!

The evil Saiyan Cumber has now revealed his true form, and in order to face off against him, Goku and Vegeta fuse via the Potara! They become the mightiest warrior, Vegito Blue, and even let loose with the Kaio-Ken!! Cumber counters by unleashing an amazing form.

The rest of the group from the Prison Planet have made it safely back to Beerus's planet, where they regroup with Whis. Xeno Goku and Xeno Vegeta return to their own universe, wishing the others good luck. Suddenly, the Supreme Kai of Universe 6 appears

Oren and Kamin suddenly convert their bodies into energy and possess Kale and Caulifla, using their bodies to attack the others. Vegeta, Trunks and Hit develop a plan; Trunks and Hit fight and immobilize Oren and Kamin, with the siblings forced to abandon their host bodies when Vegeta fires a Final Flash at them. Before the battle can continue, Hearts appears with a strange crystal and immobilizes all of them with his psychic powers.

Vegeta and Trunks arrive in Universe 11, and discover that Hearts and his gang are already there attacking. Oren catches the Saiyans off-guard and possesses Vegeta's body, gaining his immense power for himself. Trunks attacks Oren, but he is easily defeated. Meanwhile, Jiren is fighting Cumber: they appear to be evenly matched, so Cumber transforms into a Super Saiyan, but Jiren is still holding his own until Hearts appears and calls off the fight. Oren takes over fighting Jiren, while Hearts sends Cumber to attack Universe 3 instead. Kamin and Zamasu join the battle against Jiren; Trunks tries to help by attacking Zamasu, but Oren swiftly defeats him again. Just as Oren is about to finish off Trunks, Goku arrives with the Grand Minister. The Grand Minister departs, and Goku demonstrates that he now has some control over Ultra Instinct.

In the Time Nest, headquarters of the Time Patrol, the Supreme Kai of Time informs Xeno Trunks and Xeno Pan that her mystical bird Toki-Toki has disappeared. She sends the two of them to find him, while also being worried about a supposed "Bird of Catastrophe" that has been released. Meanwhile, Toki-Toki has appeared on Earth in the main timeline, where Goku finds him while training with Vegeta, Gohan, Piccolo, Krillin, and Android 17. Xeno Trunks and Xeno Pan arrive and are happy to see that Toki-Toki is safe, with Xeno Pan explaining that his existence is very important for the inner workings of the multiverse. Suddenly, the group is interrupted by the arrival of all twelve Gods of Destruction.

Goku, Vegeta and Xeno Trunks are fighting against Beerus, while the others and the other Gods of Destruction watch. Beerus has the upper hand, until their battle is interrupted by the arrival of Xeno Goku and Vegeta, who warn them that they need to stop the fight. Suddenly, a mass of giant tree roots appears in the sky around the Earth and begins draining the planet's energy. The other gods all rush back to their own universes to protect them, leaving Beerus, the Earth's heroes, and the Time Patrollers behind. They are then confronted by Fu, who is accompanied by Doki-Doki. Fu confirms that this is the "Bird of Catastrophe" that Beerus was worried about and that the tree roots are part of the Universe Tree, which grew from the Universe Seed that Hearts was developing. Fu escapes through a portal. Beerus rises into the sky and powers up, shielding the Earth by allowing the Tree to feed on his energy instead; however, he warns the others that he will not be able to keep this up for long.

Fu, accompanied by an unknown female companion, meets with a group of villains - Meta Cooler, Turles, Bojack, Super Android 17, and a mysterious humanoid scientist known as Dr. W - on the Universe Tree, where he reveals that he rescued all the villains from the moments before their deaths at the hands of the Z-Fighters and convinces them to help him in exchange for places in the new universe that he is creating. Meanwhile, Goku, Vegeta, Xeno Trunks and Xeno Pan are searching for Fu, when they are attacked by Turles and Bojack. The two villains reveal that Fu has been able to increase their power immensely, as they are now strong enough to fight on par with Goku and Vegeta's Super Saiyan Blue forms and have auras similar to Cumber's. As the battle rages, Xeno Trunks spots Fu observing the fight: Goku and Vegeta try to engage him instead, but Turles and Bojack block their way. Elsewhere, Xeno Goku and Xeno Vegeta arrive in Hell, and are confronted by the mysterious Dr. W.

A mysterious figure looks out over the new universe's version of West City. Nearby, Goku has been attacked by Frieza and Meta Cooler. In the process, he is contacted by Xeno Trunks, who is at the Time Nest with Xeno Pan, Xeno Gohan, Xeno Goten, and the Supreme Kai of Time. Xeno Trunks informs Goku that what Fu has actually created is merely a copy of the Seventh Universe; interestingly, any damage inflicted on the buildings in the alternate West City is also transferred over to the real West City.

Goku and Hearts struggle against the newly-empowered Frieza and Cooler, until their battle is interrupted by the arrival of the alternate Broly in his Legendary Super Saiyan form. Broly attacks all four combatants, overpowering them all, as the masked Saiyan looks on. Suddenly, a mysterious cloaked figure arrives on the scene and attacks both Cooler and Frieza, removing the Dark Dragon Balls from both of them.

On the unknown planet, Vegeta, Turles and Cumber begin fighting each other. Cumber temporarily disables Vegeta and continues fighting Turles, while Goku and Hearts arrive to help Vegeta. They are confronted by the masked Saiyan, who reveals himself as...

Something crash lands on Earth. Everyone goes home from the Super Space-Time Tournament, but Chronoa, Vegeta, Gohan, Piccolo, and Xeno Trunks wait for Goku to wake up. Chronoa attempts to send them to Earth, but it is gone. Shocked, they go to King Kai's planet, but are greeted by Majin Ozotto, who explains that he ate King Kai and his companions, plus everyone and everything on Earth. Now he aims to eat more gods and attacks Chronoa. The others defend her and fight him with Goku and Vegeta using Super Saiyan Blue, Xeno Trunks using Super Saiyan God, and Gohan using Mystic Form, but he quickly absorbs Piccolo and Gohan. When they damage him, he reveals he gained regeneration from absorbing Buu, plus his detached parts can shapeshift into anyone he absorbed, which he demonstrates with Android 17 and 18. He merges with his duplicates and his power skyrockets. Realizing the battle is hopeless, Chronoa teleports herself, Goku, Vegeta, and Xeno Trunks away.

Chronoa explains that Majin Ozotto is a notorious criminal the Time Patrol had been tracking. Ozotto attacks the Elder Kai, having already absorbed Supreme Kai and Kibito, but is interrupted by Xeno Goku and Vegeta. He transforms into Baby and battles them, then has duplicates transform into Frieza and Perfect Cell to battle them. Chronoa's group goes to Namek, but all the Namekians have already been absorbed. They find another Ozotto preparing to consume the planet and challenge him. After Xeno Goku and Vegeta defeat the duplicates, the intrigued Ozottos reveal their desire to absorb everyone to have all their powers and invites both groups to the Ozotto Mansion. They teleport away, leaving invitation cards behind.

Joined by Xeno Goku and Vegeta, the group goes to the Ozotto Mansion, but makes Chronoa stay behind to not risk her. They blast the mansion, but it is unaffected. Ozotto's voice challenges them to split up and enter 5 different entrances. If they find and defeat the real Ozotto, everyone he ate will be freed. Goku finds and battles an Ozotto duplicate using Ultra Instinct; the duplicate changes to Turles, Bojack, and Meta Cooler and they are evenly matched. Vegeta finds a duplicate who changes to Super Janemba's form. After giving Vegeta a beating, the duplicate says he is too weak to be a meal and would rather eat Goku. Enraged, Vegeta uses Super Saiyan Blue Evolved and blasts him with Final Flash. Meanwhile, Gohan wakes up in a pod and finds Goten, Trunks, and others unconscious in pods. As he struggles to break free, Ozotto taunts him and explains that they are all inside his body.