Amberlynn Grace has been best friends with Niall Horan since she was 5 years old. When she was 15, Niall left to go audition for X-factor, and she was left behind in West Meath, only able to talk to Niall on the computer. And then, her world turns upside down. Her parents announce they are moving to America. Even farther away from Niall. Her parents tell her once she turns 18, and graduates high school she can move anywhere she wants. At first, She's upset about leaving, and tries to refuse to go. But then Niall promises her that he'll be there to get her on her graduation day. Fast forward a few years, and Niall has arrived to get her. She moves to London with Niall and the rest of the boys. The more time she spends with him, and he spends with her, the clearer something becomes to the both of them. Just without the other knowing it. It could tear them apart, or it could make them closer than ever.

She still can't believe that that one simple summer had changed her life and perspective about love. But it did, now going back to the place of her first love and heartbreak that had somehow kept her from living through memories, she suddenly finds herself reliving the past. Realizing something, she runs after the present towards him with a new found hope...but will he be there?