Young third grader Ramona (Joey King) has a vivid imagination, boundless energy, and accident-prone antics that keeps everyone she meets on their toes, especially her older sister Beezus (Selena Gomez) who is trying to get her cute crush Henry, (Hutch Dano) to go out with her. But her irrepressible sense of fun, adventure and mischief come in handy when she puts her mind to helping save her family’s home before it’s too late.