When Mom and Dad announce they're getting a babysitter for the first time, Mia is alarmed. What will happen if the babysitter doesn't understand the unusual things Will does? Her parents know that she is Will's "translator" because she always understands him. Can they manage a whole night with a brand-new person in charge? Is it always Mia's job to worry, or can she find a way to rely on other people? Toast explores the tender, scary, funny, and always complex relationship between a girl and her autistic brother.