Ten-year-old Camille McPhee relates the ups and downs of her fourth-grade year at her Idaho elementary school as she tries to adjust to the absence of her best friend, maintain control of her low-blood sugar, cope with the intensifying conflict between her parents, and understand the importance of honesty and fairness.

Branded a troublemaker due to his anger over everything from being bullied to his sister's death a year before, Marcus begins to control himself and cope with his problems at home and at his inner-city school when an unlikely mentor teaches him to play chess.