Get ready for an awesome adventure of a lifetime in Monte Carlo! Selena Gomez (Ramona and Beezus) lights up the screen as Grace, a high-spirited high school grad looking forward to a vacation in Paris with her best friend Emma (Katie Cassidy) and stepsister Meg (Leighton Meester). Just as the girls think their trip is ruined when their hyperactive tour guide leaves them behind, Grace is mistaken for a wealthy socialite and the trio is whisked away to Monte Carlo for a thrilling week of glitz, glam, and unforgettable fun.