Pre-teen identical twins Annie and Hallie´s parents divorced when they were infants, each parent taking custody of one twin. Neither twin knows about the other's existence until a chance meeting at summer camp. It's hate at first sight, and still unaware they are twins, do their best to sabotage the other. Finally realizing they are sisters, they hatch a plan to switch places so each can meet her other parent. Annie goes to dad, Nick’s California winery and Hallie to London to meet her fashion designer mother, Elizabeth. The ruse works, and the girls scheme to get their parents back together, but an unexpected snag upsets their plan.
