"Continuing their work as Ultra Guardians protecting the Alola region, Ash and his friends from the Pokemon School investigate some unusual events near Wela Volcano. Team Rocket and Lana both gain new friends, and Ash and Rowlet meet a new rival. An encounter with Tapu Koko sends Ash and Pikachu to a desolate parallel world, and an invitation from Lana brings Misty and Brock to Alola! Finally, our heroes visit Poni Island, where Lillie and Gladion make a startling discovery about their long-lost father, Mallow has an emotional reunion, and Ash takes on his final grand trial against a brand-new island kahuna!"