Mattie, a shy fifth-grader, wants to hide out at her new school by acting as apprentice to her Uncle Potluck, the custodian, but her plan falls apart when she summons the courage to speak about what matters most and finds a true friend.
When Aref, a third-grader who lives in Muscat, Oman, refuses to pack his suitcase and prepare to move to Michigan, his mother asks for help from his grandfather, his Siddi, who takes Aref around the country, storing up memories he can carry with him to anew home.