Charlotte and Erik are huge Beatles fans. But things haven't been easy lately, especially with their 16-year-old daughter Fiona, who's kind of a loner. When they decide to sign up a student exchange program, they pick a name from a list: Sandy McCartney from London. Sounds fantastic. She might be related to Paul from the Beatles. Waiting for a girl at the airport, their assumptions are met with a surprise. Sandy, it turns out, is a 13-year-old nerdy boy of Indian descent instead of a hip Brit girl. That doesn't work for them at all. They try to get rid of the little know-it-all, but Sandy might just be a blessing in disguise.