Ronnie Cooper was looking forward to spending her entire summer vacation at her grandparent's house alongside her best friend Natalie, who she was allowed to bring with. Unfortunately, Natalie died in a terrible car accident just two weeks before. This left Ronnie really sad and now she has to go alone with her parents. Ronnie can't believe Natalie is gone and thinks it's going to be the worst summer ever. But little does she know that her summer plans were about to change when she accidentally hears someone singing.