When Hayley buys a ukulele at a yard sale, she begins to see what her talent in life might be. Learning to play takes practice, but it's fun. Before long Hayley is strumming up a storm, and her classmates want in on the action. Then terrible news threatens not only the new uke band, but the whole school music program. It's up to Hayley and her band to come up with a creative plan to keep their school rocking.