Pokémon S08E28 - Hi Ho Silver Wind!

The heroes arrive to Slateport City, where they meet up with May's mother, Caroline, as well as her rivals, Drew and Harley. Harley, despite his past incidents, tries to bond with May, suggesting she should have only Beautifly use Silver Wind. May, unaware of Harley's true motives, starts to take liking to this idea. Suddenly, the group hears that Norman is in town, too, and go to check that out.