Ellie Whitmore's mother, Emily, has been best friends with Denise Jonas since they were in high school. Before settling down, they would constantly fly to where the other person lived and visit, but life gets busy, and after getting married and having kids, it's been years since they have seen each other. Denise has 3 teenage boys: Kevin (22), Joe (19) and Nick (17), who are the famous Jonas Brothers. Ellie and the boys used to play together when they were little, but the last time they visited each other Ellie was 5. For the upcoming 3 month summer break, Emily, Denise and all the kids are going on a holiday together to a beachside town, where Ellie and the boys will see each other again.
What could happen, right?