Terri Fletcher (Hilary Duff
) is a small town girl with big time dreams. Blessed with a naturally joyful singing voice, Terri has her sights set on attending the Bristol-Hillman Conservatory in Los Angeles - the most celebrated summer music program in the country. Although she has plenty of raw talent, her lofty aspirations are quickly dashed by her overbearing father, Simon (David Keith
), and the tragic loss of her beloved brother, Paul (Jason Ritter
), who had secretly submitted a demo video of Terri that results in an acceptance letter to join the prestigious program.
A despondent Terri resigns herself to staying home for the summer when her mother Frances (Rita Wilson) and Aunt Nina (Rebecca De Mornay) intervene and covertly devise a plan to keep her from missing out on the opportunity of a lifetime.
Upon her arrival in Los Angeles, Terri is quickly introduced to the ultra-competitive, high-stakes environment of the big city. Lacking any formal training, she struggles to make friends and to find her voice amongst the highly-gifted group of musical students. Mentored by Mr. Torvald (John Corbett), Terri pushes herself to prepare for her final performance, which will determine the winner of the school's $10,000 academic scholarship.