Pokemon (2019) EP10 - A Test in Paradise!

Acting on reports about Dragonite, Ash and Goh begin a search for a mysterious island that may be the Dragonite habitat. To get there, Goh catches a Dewgong to use as a Ride Pokémon, but its chasing a female Dewgong it has fallen in love with sends them headlong into a storm; fortunately, they are rescued by Dragonite who bring them to their island. While learning about the Dratini, Dragonair, and Dragonite living there, Ash and Pikachu help a Dragonair who's having trouble learning how to fly.