Sara is just another teenage girl waiting for her special day. When she realizes that the day has become, yes, it is time for her to get her first bra. So excited she has to share with her best friend which happens to be her Diary, a character that comes to life and has more attitude than is actually necessary but she supports her and all the good things that Sara writes about. As Sara runs downstairs to share in the joy with her family she realizes that her father is not interested, her super smart 7 year old brother is annoying as hell, but her mother is rightfully excited that it's time to go shopping for the first bra and of course her mom had to bring her grandmother (GranGran) along for the ride. With pure comedy a series of experiences happen throughout as Sarah, her mom, her grandmother, her best friend Nikki, and her Diary all make their way to the mall for the annual bra sale. Everyone splits off in different directions to go to different places her grandmother is looking for lace, Nikki is looking to spend a lot of her father's money, and Sara stays with her mother in hopes of having a great experience. While there are struggles along the way Sara walks out with more than she thought she was going to get. She now realizes how important and special the women in her life are, and especially recognizing how amazing her mother is for giving her this special today.