After her family gets shot in a hostage, Katrina Marie leaves her home and friends. She finds out that Taylor Swift is her unknown aunt and she has to roam around the world on tour with her. While on this trip, Katrina finds out her idol's deepest, darkest secrets and finds herself doing everything for Taylor. She's beginning to wonder why she's having to buy so many unnecessary things. One day, Taylor goes clubbing, but leaves the underage Katrina outside alone. This is when she realizes what she has to do. Run away. Just as she's about to leave Harry Styles, Taylor's current boyfriend, catches her. He realizes that she's alone and takes her home with him so she has a place to stay. Will she fall in love with Harry? Or secretly fall in love with someone else?