Pokémon S02 E12 The Joy of Pokémon

"Gotta catch 'em all!"

While riding Ash's Lapras to the next island, Ash and the gang come across a tanned Nurse Joy who insists on healing Wild Water Pokémon on the island. Ash and Tracey decide to help out, but when Team Rocket arrives to stop them, a giant Magikarp arrives.