This marks the first time since Pokemon Kimi ni Kimeta! (1997) that Jessie, James, and Meowth do not appear in a regular episode of the Pokémon anime, excluding the clip show episode Satoshi and Haruka! Heated Battles of Hoenn!! (2005). They will have regular absences from the series from this point on.
Ash has a rematch with Lenora and manages to defeat her, earning the Basic Badge.
Lenora's Lillipup is revealed to have evolved into a Herdier.
Ash's Oshawott learns Aqua Jet, while his Tepig learns Flame Charge.
Ash learns that the next Unova Gym is located in Castelia City, and decides to head there.