Showdown in Pewter City

Pokemon: Ash and Misty have arrived in Pewter City. A rock-seller name Flint approaches them and attempts to sell them some rocks. At the pokemon center he learns of the pokemon league and decides to start collecting badges. He heads for the gym and is easily overpowered by Gym Leader Brock. Flint, who happens to be Brock's dad, helps Ash train Pikachu and Ash heads back for a rematch.