Jonah Grable has always been content to step back into the shadows while his older sister, Kate, takes on the role of an adventurous zombie fighter. But his comfortable existence is suddenly upended when he discovers that he might not just be the supportive sibling anymore. With the appearance of a mysterious yeti and strange happenings in their town, Jonah finds himself thrust into the spotlight, grappling with his own strengths and insecurities.
As Jonah navigates this unexpected turn of events, he realizes that he must face his fears and step out of his sister's shadow. Throughout his journey, he encounters quirky characters, a blend of humor and danger, and the realization that maybe his own bravery has been hiding just beneath the surface all along.