Pokemon Season 1 Episode 2 - Pokémon Emergency!

⁣Finally arriving in Viridian City, Ash is cornered by Officer Jenny who
asks why he is carrying Pikachu instead of having it in a Pokéball. He
explains that Pikachu doesn’t like Pokéballs and shows her his Pokédex
proving that he is one of the Pallet Town Trainers. Jenny takes Ash to
the Pokémon Center where Nurse Joy begins treatment on the injured
Pikachu. Before Pikachu’s treatment finishes, however, the Center is
attacked by two members of Team Rocket.