Pokemon Season 1 Episode 11 - Charmander – The Stray Pokémon

⁣On the way to Vermilion City, Ash, Misty, and Brock come across a
Charmander sitting on a rock. Ash tries to catch it, but it turns out it
has a trainer and can’t be captured, so they head to the Pokémon
Center. At the center, a hotshot trainer named Damien is bragging about
how he left it, promising to come back for it. After hearing this, they
head back out to get the poor Pokémon as the rainstorm threatens its
very life. After a battle with Team Rocket, Ash captures the Charmander,
gaining a new friend and Pokémon.