Ash and Misty arrive in Pewter City, where Ash eagerly challenges the local Gym Leader, Brock, to win his first badge. After an initial crushing defeat, Ash meets a mysterious man named Flint who helps him "supercharge" Pikachu for a rematch. Key Events Pokémon: Indigo League, Episode 5: Showdown in Pewter City

This pivotal episode marks several "firsts" for the series, including Ash Ketchum's first Gym battle and the introduction of Brock as a major character.

Showdown in Pewter City (Japanese: ニビジムのたたかい！ Nibi Gym Battle! )

April 29, 1997 (Japan); September 14, 1998 (US)