Pokémon Season 1 Episode 10

Bulbasaur and the Hidden Village
Ash and friends are still on their way to Vermilion City and still lost. They stop by a pond for a break when they see an Oddish taking a drink. Ash and Misty try to catch it but they are stopped by a mysterious Bulbasaur who rescues the Oddish. They continue on their journey and keep getting caught in traps, until the Bulbasaur’s owner, Melanie, finds them, saves them and brings them back to her cabin. It turns out that she helps injured, sick, and abandoned Pokémon, and they decide to help. Meanwhile, Team Rocket decides to steal all the Pokémon, while Brock wonders if he should stay with Melanie. In the end, Melanie gives Bulbasaur to Ash, but not until Bulbasaur challenges Ash and Pikachu to a battle.