Lisa Franklin's troubles seem to melt away when she sings. Since joining a high school band, she feels like a new person: strong and self-confident. Not like the person who has felt miserable since her mother died four years ago. But Lisa's brother, Mark, isn't so happy about her singing with the band--it's his band, his friends. As the summer progresses, Lisa is thrilled with the band's success and all the attention she's getting. But while the other band members can't deny that Lisa is improving their sound, they're not sure it's what they want. The dilemma is even greater since no one knows how to tell Lisa.