Lester, who has autism spectrum disorder (but doesn’t know it), was always homeschooled. But now his mom has to get a job so he is starting fifth grade in a public school for the first time in his life, where he is faced with the challenges of making friends, fending off bullies and dealing with his intolerance for loud noises and schedule changes. Then space loving Lester learns about the school science fair and things start looking up!