Every day of Summer break Sienna Cadwell goes to the nearby park. There she meets a guy. They fall into the routine of seeing each other everyday, but staying separate and never talking. One day, something changes in their routine. The guy decides to sit next to her on the bench. They continue this routine as well. They could talk, but never do, until one day. Until a day where Sienna's routine is completely re arranged, and she ends up talking to this stranger. And just that one change in routine leads to a string of events that change Sienna's life. He's just the boy in the park. But he changed everything for her.