This film is the latest Disney original TV movie starring a popular American girl star. Carter (Selena Gomez Selena Gomez)'s father Mason is a Rear Admiral with Princess Protection Project. Received a message to protect Rosalina (Demi Lovato Demi Lovato), a princess of a small country called Kostaruna. The evil General Kane captured Kstaruna during rehearsals for her coronation. Mason was entrusted by the princess's mother, Sophia, to take the princess away, while Sophia stayed as a hostage. After the transformation of the Princess Protection Program Command Center, Mason took the princess to a small rural town in the United States, renamed Rosie, and lived there as cousin Carter. This time, the princess will learn to be a normal American teenager and wait for the right opportunity to return to her country to defeat the power grabbers and inherit her throne. What kind of story will be played between Rosalina and Carter? Will Rosalina finally be able to save her mother and regain her inheritance?