Покемон

Ash and Goh arrive in the wild area of Galar and meet a Thwackey. Goh's Grookey has a longing for his evolved form Thwackey. However, for some reason, this particular Thwackey seems to have only one stick, when it should have two. What will Ash, Goh and Grookey do to help Thwackey.