Pokemon (2019) EP53 - Healing the Healer!

The Legendary Pokémon Suicune is said to travel across the world, purifying polluted water as it goes. Professor Cerise informs Ash and Goh about Suicune, sending them to Johto to investigate. Once there, Ash and Goh encounter a group of Pokémon hunters that are intending to capture Suicune. While Suicune is being attacked, Goh throws a Poké Ball at it and catches it. Ash and Goh are pursued by the hunters, but the duo are able to get them arrested. Goh attempts to release Suicune, but it opts to remain his Pokémon while it travels around the world.