High School Musical star Ashley Tisdale headlines this coming of age comedy about an unpopular high school senior who lands a date with the most popular boy in school, only to find herself grounded on day of the big event. Mandy Gilbert (Tisdale) never ran with the "in" crowd, but the biggest party of the year is coming up and she needs to land a date as soon as possible. Much to Mandy's surprise, high school hunk Drew (Robbie Amell) agrees to accompany her to the big event. But just when it seemed like everything was going to work out in the end, Mandy is placed under detention by her overprotective dad. Perhaps with a little help from her resourceful friends and her handy new video phone Mandy will be able to trick her father, outsmart Drew's jealous ex-girlfriend, and finally prove that she has what it takes to become the most popular girl in school.