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

SM042 · Alola, Kanto!

カントーでアローラ! タケシとカスミ!!

US air. 2017-11-25 JP air. 2017-09-14 Season. Sun & Moon (S20) Position. Episode 42 of 146 in Sun & Moon

Synopsis

What happens.

Samson Oak informs the class that they will be having a special extracurricular activity to celebrate the Pokémon School's twentieth anniversary.

Synopsis adapted from Bulbapedia's SM042 entry, used under CC-BY-NC-SA 2.5.

Story arc · SM001-SM043

Sun & Moon.

Ash transfers to Pokémon School. Picks Litten; befriends Rockruff. Island Challenge concept introduced as a Pokédex-equivalent quest.

Read the full Sun & Moon guide

Pokémon featured · 20

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.

More from this arc

Other episodes in Sun & Moon.

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.