Pokémon (1997)

S2E29 The Wacky Watcher!

Title: The Quirky Observer! Plot: While on Rind Island, Tracey encounters Dr. Quackenpoker, a renowned Pokémon researcher focused on the fascinating phenomenon of Magikarp ascending waterfalls and their transformation into Gyarados. Just as they delve into this unique study, Team Rocket shows up with plans to capture the Magikarp and force their evolution.