Part 1: When a powerful hurricane hits Elwood City, everyone's affected. Ladonna's dad is called up by the Army Corps of Engineers. Muffy relocates to a shelter, while Arthur struggles to reunite lost pets and owners. And Brain seeks the help of a therapist--voiced by special guest Idina Menzel--to help him manage his anxiety. Part 2: A powerful hurricane affects everyone in Elwood City. Muffy and her family relocate to a shelter. Ladonna's father helps rebuild with the Army Corps of Engineers. Arthur starts a charity for lost pets. Brain attends therapy for help managing his anxiety.