Edge/Time War

Three years following the crisis at the Battle Frontier, Edge is seen training with his Pokémon at Viridian Forest. As Edge commands Pikachu to use Volt Tackle, he also commands Gyarados to use Hurricane, and Pikachu barely manages to push through Gyarados's Hurricane for a direct hit, with Edge praising both Pokémon for their power.

Suddenly, Celebi appears before them, with Edge becoming startled by the Mythical Pokémon's sudden appearance. As Edge questions Celebi's arrival, Celebi simply begins charging up its power, and a bright flash of light engulfs the entire area. As the light disappears, Edge and his Pokémon find themselves in a different location. Edge doesn't recognize the area, and also wonders where Celebi headed off to. Just then, a man approaches Edge, and questions his appearance. Edge notes the man's choice of outfit, and notes to be rather ancient, and Edge summarises that Celebi had sent him back in time. The man continues to question Edge's arrival, and demands to know where he came from. Edge struggles to come up with a reasonable answer, but the man notices his Poké Balls and becomes startled. The man continuously demands to know where Edge obtained the Poké Balls, and Edge expresses surprise at the man knowing what a Poké Ball was. Much to Edge's shock, the man reveals that he created the very first Poké Ball in existence.

Edge introduces himself, and explains to the man that he came from the future, thanks to Celebi's time-traveling powers. The man, although suspicious, believes Edge's claims, as Edge's very appearance and choice of outfit reflect his futuristic origins. The man introduces himself as Johto, and Edge becomes further shocked, and accidentally mentions that the man was named after the region, but quickly closes his mouth as he realizes he was in the past. However, the man quickly deduces what Edge's words meant, and explains to the Trainer from the future that he was a member of a long-family of siblings, with Johto being the third oldest. Johto then announces his other siblings's names, and Edge recognizes it as the same names from different regions, and assumes that each region was named after the siblings, although the reasons Edge still couldn't realize why.

Just then, a girl about the same age as Edge appears, and Johto recognizes her as Sinnoh, her younger sister. Sinnoh spots Edge, and immediately blushes and becomes shy, hiding behind her brother. Johto explains that Sinnoh was the youngest of the siblings, and their father always looked down on her as she was "ordinary" compared to her brothers and sisters, but Johto always stood up for her. Johto encourages Sinnoh to greet Edge, and she waves at him with completely shyness, and Edge waves back with a smile, and Sinnoh gives a warm smile, and Johto realizes that Sinnoh developed a crush on the Trainer from the future. Johto further explains that while he came up with the Poké Ball, his older brother Kanto, the older of all the siblings, came up with the concept of a Pokémon Trainer, and they always battled each other for sport, as long as the Pokémon were okay with it.

Edge then continues to explain his origins, and shares his wonders of why Celebi brought him to the past, and Johto theorises that Celebi must've sensed some imminent danger, and realized that Edge either needed help, or the danger was about to occur in the past, and Edge was necessary to bring along. Just then, Celebi appears before them, and Edge asks why it brought him to the past, but Celebi doesn't respond and unleashes another bright flash of light.

As Edge, Johto, and Sinnoh regain their sight, they find themselves somewhere else. As Edge looks up, he notices a giant tower not too far away from their location, and mentions how technologically advanced it was, and assumes Celebi brought them to the future. Just then, Edge, Johto, and Sinnoh are surrounded by several guards, who claim they were on restricted territory. As the guards summon Muk, Cloyster, Munchlax and Sunflora, Edge, Johto, and Sinnoh prepare to fight, but someone else appears and summons the Legendary Pokémon Regirock from above, who uses Earthquake to defeat all of the Pokémon, while Edge, Johto, and Sinnoh, are rescued by a Latias, whom seems very fond of Edge in particular. The Regirock gets recalled, and Edge follows the beam towards the top of a cliff, and becomes amazed at seeing the person who saved: An older version of himself.

Latias gently drops Edge, Johto, and Sinnoh behind the Edge from the future, and nuzzles the younger Edge's face in affection, and the Edge from the future notes that Latias had quite a crush on him, and since he was a version of himself, that extended towards his younger-self too. As the guards curse the Edge from the future, they prepare to summon more Pokémon, but Edge removes a Ultra Ball and summons Mewtwo, who easily knocks out all of the guards with Psystrike. The Edge from the future says that he was the one who had Celebi gather them together, as they were needed to help him in a crisis that could destroy time itself. He then formally introduces himself, and jokingly states to call him **Future Edge** to distinguish him from his younger self.

As they arrive at the tower that Edge had seen earlier, Future Edge mentions it was his headquarters, as he kept tabs on many different regions, and whenever trouble occured, he would dispatch her personnel to help, and would only join them himself if the problem was life-threatning towards others. Johto then asks what was the crisis that Future Edge was talking about, and Future Edge begins explaining the crisis.

Three months earlier, Future Edge was patrolling the Kanto region with his Latias, when he saw an injured Rattata laying unconscious. As Edge and Latias approached it to help him, they were struck down by a powerful Hyper Beam, and before Future Edge lost consciousness, he managed to see the figure who had attacked them: Giovanni. However, Future Edge mentions that it was a different Giovanni from the one his younger self knows, as this Giovanni was from his world. Future Edge then reveals that Celebi didn't send them to the future, but rather to an alternate future, in which Future Edge originated from. He further explains that in his world, all of his comrades perished in a deathmatch against Team Rocket years earlier, with only himself remaining as the sole Pokédex holder. Since then, Future Edge has made his goal to protect the entirety of the Pokémon world from evil, citing his friends's demises as the factor for his goal. However, Giovanni managed to survive the fierce battle, and had been trying to gather allies from alternate worlds who shared a common goal: Absolute power. Giovanni had managed to gather allies from alternate worlds, and they were all incredibly powerful. Despite being reluctant, Future Edge decided to follow Giovanni's mindset, and summoned Celebi to his world, and asked for his help, to which Celebi agreed, and set out to gather the most powerful and trustworthy allies it could find.

As Future Edge finishes his story, Mewtwo walks into the room and informs them through telepathy that Giovanni was close to completing his army, and they needed to gather more allies. Johto then recommends some of his siblings, and Future Edge agrees, and has Celebi travel through space and time to gather them. Hours later, Hoenn and Kanto, two of Johto and Sinnoh's siblings, have gathered, and Future Edge having filled them in on everything. Mewtwo then uses its Psychic powers to sense Giovanni, and points them towards the Desert Resort in the Unova region, and Future Edge leads the troops towards battle.

As they arrive in the Desert Resort, Future Edge, Edge, and the ancient siblings gather around, and they begin searching for Giovanni. Future Edge suggest they split up, and whorever found Giovanni first, send a signal through their Pokémon. Johto asks Edge to stay by Sinnoh's side, as she didn't had a Pokémon of her own, and Edge agrees to watch over her, much to Sinnoh's embarassment. Edge and Sinnoh begin looking around for Giovanni, but they find no sign of the villain. Edge looks down and sees a shadow slowly becoming bigger, and bigger, and looks up to find a Pokémon about to crush them, and Edge pushes himself, and Sinnoh, out of harm's way as the Pokémon lands. Edge asks Sinnoh if she's okay, to which Sinnoh replies positively. Edge then realizes the Pokémon was a Shiny Golurk, with its Trainer walking behind it, with an evil smirk on its face. Just then, Giovanni and his allies gather around Edge and Sinnoh, and Edge has Pikachu fire Thunder towards the sky to alert his comrades.

As Future Edge and the others arrive, they find themselves in a staredown with Giovanni's forces, with Giovanni commending Future Edge on following his footsteps of gathering allies from alternate worlds, but Future Edge rebuffs his comments, and vows to bring him down once and for all. Giovanni scoffs his confidence and says that with the power of alternate worlds, no one could stop him. Giovanni introduces his allies one-by-one: Shawn, Brianne, Leonel, Valkyrie, and Lightning. Everyone prepares for battle as Shawn summons his Shiny Golurk, Brianne summons her Luxray, Leonel summons his Abomasnow, Valkyrie summons her Shiny Entei and Lightning summons his Eelektross. To combat, Future Edge summons Latias, Edge summons Venusaur, Johto summons Ho-Oh, Kanto summons Zoroark, and Hoenn summons Regigigas.

The battle begins, and both parties's Pokémon begin to fight each other, while Edge tells Sinnoh to escape and hide. Sinnoh is constantly stopped by the villains, but is saved every time by an ally until Valkyrie chases her down. Edge summons Aerodactyl, who swoops in and takes Sinnoh to safety. On the top of a building, Giovanni watches the battle. Shawn approaches him and asks why Giovanni isn't fighting. He retorts angrily that Shawn is in no position to make demands. Giovanni then pulls out a bomb, and Shawn reminds Giovanni of their partnership and points out he wasn't informed about a bomb; Giovanni answers that the bomb is a Time Bomb, and begins activating it. Shawn gleefully notes that Giovanni intends to erase Future Edge from existence with the bomb, but Giovanni corrects him. The bomb will indeed erase Future Edge, but not only him, but also erase every other alternate timeline from existence, with the exception of Sinnoh herself. Shawn expresses confusion on why Sinnoh would be spared, and Giovanni replies by saying that despite having no Pokémon, Sinnoh had special powers similar to those of a girl he used to know in the past. Shawn then asks if he would be erased as well, and Giovanni calmly thanks Shawn for his help and tells him that his assistance is no longer required.

As the bomb activates, Shawn tries to escape but is swallowed up by the blast. Sinnoh notices the blast and turns to ask Edge for advice; however, Edge is gone. The blast spreads, wiping out the other Trainers one by one, save for Future Edge and Edge, who regroup with Sinnoh, who heroically shield her from the blast. As Future Edge and Edge fade into non-existence, Future Edge hands his Pokémon over to Sinnoh, telling her that she was the only one that could stop Giovanni, as Future Edge and his younger self are completely erased.

Sinnoh is soon attacked by Giovanni, who manages to conceal the Poké Balls on her waist from Giovanni's sight. Giovanni gloats that this was the sole reason he hunted down Sinnoh; to destroy all the wielders Trainers from the multiverse at once. Asking Giovanni why she was spared, Giovanni mentions her powers, and Sinnoh expresses surprise at Giovanni's knowledge of them, and Giovanni mentions that by using Future Edge's technology, he would transfer her powers into himself, allowing to heal not only Pokémon, but himself. Declaring that Sinnoh is no threat to him, Giovanni attacks, but Celebi appears, and pulls Sinnoh to safety via a portal.

Celebi takes Sinnoh to a pocket dimension outside of time and space, where it confirms Giovanni erased all timelines from the multiverse, leaving Sinnoh as the last remaining being in the multiverse. Sinnoh sadly looks down, but regains a determined look on her face, ready to face whatever comes next. Celebi cryptically informs her that they will have to return "to the beginning". Celebi tells Sinnoh that they must "reboot" the timestream, and teleports itself and Sinnoh to the past. When Sinnoh checks her surroundings, she notices a young Edge playing with his Azurill at a nearby lake. Celebi then informs that as story occured, Edge nearly drowned, and Azurill evolved into Marill to save him, but notes that Edge isn't going anywhere near the lake to trigger the evolution, and tells Sinnoh to carefully make sure history unfolds as it originally did.

Summoning Mewtwo from its Ultra Ball, Sinnoh tells Mewtwo to prepare for the right moment, and use Psychic to send Edge falling into the lake. After a few minutes of wait, Edge trips over a rock, and Sinnoh tells Mewtwo to use Psychic, and Mewtwo successfully sends Edge flying into the lake, subsequently rebooting the timestream as Azurill evolves into Marill and rescues her Trainer, as history originally unfolded.

Celebi congratulates Sinnoh on reseting the timeline, but also tells her that it would also restart the Giovanni continuum, as Giovanni's plans would restart once again. Determined, Sinnoh asks Celebi their next move, and Celebi informs her that they needed to gather Future Edge, as he was currently the most intelligent and advanced Trainer out of all of them, and transports Sinnoh to Future Edge's world. When they arrive, Sinnoh and Celebi see Future Edge and his Darkrai battling against Shawn and his Glalie. Shawn commands a Water Pulse, but Future Edge counters with Dark Pulse, and both attacks explode on collison. Within the smokescreen, Sinnoh approaches Future Edge, who retains his memories from the battle, and Sinnoh returns him his Pokémon.

As the smokescreen fades, Future Edge unleashes Darkrai and Regirock, who use Dark Void and Hyper Beam, respectively, but Glalie blocks both attacks with Protect. Deeming Future Edge too powerful, Shawn retreats, having Glalie use Ice Beam as a parting shot, and a distraction, allowing Shawn to successfully escape, leaving Glalie behind to deal with his enemies. However, Darkrai defeats Glalie with Focus Blast. Sinnoh and Future Edge regroup, and decide to gather their remaining allies to battle against Giovanni, and end his plans once and for all.

Having gathered Edge and Sinnoh's siblings, Future Edge gives them all a pep talks before re-entering his own timeline to battle against Giovanni. Celebi and Sinnoh re-enter Future Edge's timeline just after Giovanni taunted her. Giovanni mocks Sinnoh, stating that she poses absolutely no threat. Sinnoh then summons Celebi, who uses its powers to undo the effects of the Time Bomb, restoring all of the other timelines and its Trainers, much to Giovanni's fury. Shawn attacks Giovanni for his betrayal, only to be knocked away by Latias as the other Trainers continue their fight. Celebi sends all the evil Trainers back to their own timelines, including Shawn. Left alone, Giovanni roars at Future Edge and his allies in anger. Then, Future Edge calls for Latias, Edge calls for Venusaur, Kanto calls for Zoroark, Hoenn calls for Regigigas, and Johto calls for Lugia. Together, they defeat Giovanni's Pokémon in a series of combination attacks, and Sinnoh delivering a powerful kick that knocks Giovanni out. With Giovanni and his Pokémon defeated, Future Edge handcuffs him and finally claims that his days with freedom are over, and vows to place him in a solitary cell for the rest of his life.

Victorious, Celebi prepares to send everyone back to their own timelines, and proper places in time. Sinnoh approaches Edge and thanks him for giving her courage and changing her ways from being shy to brave like her siblings, and gives him a kiss as a reward, much to Edge's embarassment. As her siblings become shocked, Sinnoh chuckles at their reactions, saying that she wished Edge was part of her time, as she wouldn't mind having him as a husband, before everyone (minus Future Edge) are teleported back to their own timelines, and time.

When Edge awakens, he finds himself back into his own timeline, and muses about his recent adventure, and wonders what kind of Trainers exist across the multiverse, but gives himself a nosebleed for thinking too much about it.