For Owen Bryant a promise should be kept no matter what, so when he made a childhood marriage promise when he was seven to his friend before she moved he intended to keep it. Ten years passed and he still remembered that promise, but there's one problem. He couldn't remember who it was. When Lucy King moved from New York to Los Angeles, Owen met her in the most unfortunate way possible. Together with her and his best friend Ben by his side there's never a dull moment in his senior year. As the year progressed he found out there were four possible girls who could be his one. During the year he uncovered who might be his promised girl, but it could turn out to be that some promises are meant to be broken.