Pokémon (1997)

S10E44 Mass Hip-po-sis!

Title: Mass Hip-po-sis! Plot: Ash, Dawn, and Brock stumble upon a stray Hippopotas and decide to help it reunite with its family. Their journey, however, is complicated by the persistent interference of Team Rocket and the Hippopotas' knack for lulling them to sleep. To accomplish their mission, the trio must navigate these challenges and safely guide the young Pokémon back to its herd.