When Carly Mills goes to Melbourne with the school choir, she gets more than she bargained for: a trip back in time and a chance meeting with a mischievous little girl who might just grow up to be the world famous opera singer, Dame Nellie Melba. If Carly is to help the little girl achieve her dream, she will have to endure Nellie's practical jokes, an angry headmaster, and her father's belief that opera is not a fit career for a lady. Not to mention Simone's bad moods and Dora's terrible singing.