In the moments before his championship match, Galar's Champion Leon reflects on his defeat at the hands of Eternatus during the Darkest Day, and the subsequent triumph of Victor, Leon's challenger.

After Lusamine uses Nebby's power to travel into the Ultra Wormhole to battle Necrozma, Lillie together with Selene summon the Legendary Pokémon Lunala in an effort to both restore Nebby's power and save Lillie's mother. After both Guzma and Lusamine fall out of the Ultra Wormhole, Necrozma emerges behind them. Nebby, now a Lunala, proceeds to battle Necrozma but is defeated, and is subsequently absorbed by Necrozma to create its Dawn Wings form.

After activating the ultimate weapon underneath Geosenge Town, Lysandre battles with his Mega Gyarados against Calem and his Xerneas, but is defeated. After reflecting on his ideals of preserving the world's beauty, Lysandre fires the ultimate weapon in an attempt to grant himself, Calem, and his friends eternal life.

Shortly after N's Castle rises over the Pokémon League, Ghetsis reflects on his plan up to this point. He recalls several key events, from meeting a young N and making him the king of Team Plasma to conveying his message of liberation to the citizens of Unova. Following N's victory against Alder, Hilda arrives at the entrance to N's throne room where Ghetsis instructs her to go inside and battle N for the title of Unova's hero.

As Barry enters the Battle Tower and challenges the Tower Tycoon, whose identity is largely obscured, he reflects on his journey to become strong enough to challenge his father. Events include when he and rival Lucas obtained their starter Pokémon, to his defeat at the hands of Team Galactic Commander Jupiter, and his subsequent triumph over Jupiter alongside Lucas at the top of Spear Pillar. Upon Barry's victory over the Tower Tycoon, the Tycoon's identity is revealed to be Palmer, Barry's father, who proceeds to congratulate his son.

After May arrives at the Sky Pillar on the back of Latios, Zinnia welcomes her, appreciating her for coming to the Sky Pillar, and proceeds to tell the story of Primal Kyogre and Primal Groudon, and the origins of Mega Evolution, as well as her people. The two later go to the top of the Sky Pillar, where Zinnia successfully summons Rayquaza. However, despite her pleas for the Legendary Pokemon to Mega Evolve, it cannot do so, due to the fact that the Meteoroids in Rayquaza's body have lost power over the years. Because of this, Zinnia despairs, due to all her efforts of Mega Evolving Rayquaza having failed. Suddenly, May's Meteoroid begins to glow, and at Rayquaza's urging, throws it at the Legendary Pokemon, swallowing it, and regaining the ability to Mega Evolve. May later challenges Rayquaza to a battle, and weakens it enough for it to be caught. Zinnia enters a flashback state, reflecting on her childhood dream of one day meeting Rayquaza. She later urges May to catch it, and succeeds in doing so. As her final duty as the last Lorekeeper of the Draconids, Zinnia, with her Mega Salamence, challenges May, who now has Mega Rayquaza on her side, in order to teach her how to use its full power.

The Kimono Girls perform a stage play at the Ecruteak City Dance Theater, where they each take turns narrating a part of the story of Ho-oh, Lugia, and the destruction of the Brass Tower that led to Lugia fleeing to the ocean depths. The girls' respective Pokémon assist in visual effects.

Green searches for the 150th Pokémon in order to complete her Pokédex, and notices Trace entering Cerulean Cave with the same goal. Upon confronting Trace, she declares that she will compete to catch the Pokémon first. She later discovers that Elaine has already beaten them both to capturing it, which is revealed to be Mewtwo, prompting Green to challenge Elaine in order to see Mewtwo in battle, but is defeated. Green returns to Professor Oak's lab and apologizes for being unable to complete the Pokédex, before she is reassured by Oak that she was part of a collective effort together with Trace and Elaine toward its completion. Oak is informed of the discovery of Steel-type Pokémon, and he declares that the Pokédex is not complete yet.