Heading back from Mt. Hokulani, Ash & co. decide to take a shortcut through a cave. However, the group gets separated from eachother causing Lillie, Mallow and Sophocles to meet a group of Alolan Sandshrew. They learn that the Sandshrew are trying to protect their cave from a Tyranitar. Lillie decides to challenge the Tyranitar on behalf of Sandshrew. Will she be able to win?