Synopsis

In the midst of a fierce battle against Tapu Koko, Ash and Pikachu are unexpectedly transported to a strange land, now the domain of a fearsome Ultra Beast: Guzzlord. The creature's power is daunting, yet a mysterious man named Dia appears, aided by the Mythical Pokémon Zeraora, to assist the heroes. Ash is eager to help Dia reclaim his ravaged home from Guzzlord’s destructive force, but after Dia bests him in a trial battle, Ash concedes. With no clear path home, Ash and Pikachu accept Dia's of