Katie Niroman has been best friends with Niall Horan since birth. They were always side-by-side every minute of the day; they were inseparable. That is, until Katie turned twelve and had to move to Canada for her Dad's job. For the next five years they keep in contact by calling and texting overseas. Their lives changed as they grew older; Niall signed up for the xFactor which brought him to fame, while Katie was constantly submerged in science books. But, what happens when fate brings them back together? As Katie finds herself on a private jet that's headed to London, she awaits her new life - that is - reuniting with her childhood-best friend Niall. Oh, and that's right; his four new best friends.