Pokémon the Series: Sun & Moon Episode 47: A Masked Warning!
Episode 47 of 146 of Pokémon the Series: Sun & Moon, aired October 26, 2017, 25 minutes. Available with English subtitles and dub where released.
Episode summary
When Ash gives Lycanroc a bath, an accidental splash of dirty water unleashes Lycanroc’s surprisingly red-hot temper!