Pokemon the Series Season 22 Episode 20 Got Meltan?

Professor Oak has finished his research on the mysterious Pok?mon Ash reported on and discovered it's the Mythical Pok?mon, Meltan. One of the Meltan has grown attached to Ash's Rowlet and joins them all at the Pok?mon School, but after an incident, its nut gets stolen. The group tries to replace it but it doesn't fit so Meltan and Rowlet head out to find its old nut. However, while hunting, they bump into Team Rocket who are still after all the Meltan. Will they be able to protect Meltan?