Pokémon the Series: Sun & Moon · Sun & Moon Ultra Adventures arc

SM091 · A Plethora of Pikachu!

Name: A Plethora of Pikachu!
Released: 2019-02-16

大量発生チュウ！ピカチュウのたに！！

US air. 2019-02-16 JP air. 2018-10-07 Season. Sun & Moon: Ultra Adventures (S21) Position. Episode 91 of 146 in Sun & Moon

Synopsis

What happens.

Mimo, Ash, and Kiawe arrive at Pikachu Valley and meet a Pikachu enthusiast named Pikala. She nuzzles Ash's Pikachu and identifies him as a Kantonian Pikachu because of his silky, smooth fur.

Synopsis adapted from Bulbapedia's SM091 entry, used under CC-BY-NC-SA 2.5.

Story arc · SM044-SM092

Sun & Moon Ultra Adventures.

Ultra Beasts arc. The Aether Foundation's plot deepens; Lusamine's Nihilego possession arc lands. Ash captures Lycanroc and Naganadel.

Read the full Sun & Moon guide

Pokémon featured · 6

Who appears.

Linked entries open the species page on the Pokédex. Items without a sprite (alternate forms, regional variants, generic group references) fall back to a name pill.

Other episodes in Sun & Moon Ultra Adventures.

Episode synopsis from Bulbapedia, CC-BY-NC-SA 2.5. Editorial context (arc affiliation, cultural moments, character signatures) hand-verified May 2026. Pokémon, character names, and series titles © Nintendo, Game Freak, Creatures Inc., The Pokémon Company, OLM Inc. This is an unofficial fan reference.