Pokemon Season 1 Episode 5 - Showdown in Pewter City

⁣Ash and Misty finally reach Pewter City and meets a man who sells rocks.
He brings them to the Pokémon Center and Ash heals his Pokémon. Ash is
ready to challenge the Pewter City Gym Leader, Brock, for his first
Badge, but loses to Brock. The man he met earlier takes Ash and Pikachu
to a watermill to make Pikachu stronger. Then, Ash battles Brock again.
Pikachu Thunderbolts the whole field. When Ash is about to lose again,
Brock stops the battle. Then, a fire broke out and water came down. Ash
was going to defeat Brock when Brock's siblings stop him. Ash leaves the
Gym but Brock catches up to him and gives Ash the Boulder Badge. The
mysterious man from earlier turns out to be Brock's father and takes
over the Gym for Brock. Brock decides to join Ash on his journey.