River Scott is 23 and searching for a sense of peace she's been missing. After ten years of living in Boston with her mom, she's returned to her coastal hometown of Bar Harbor, Maine, for one last unforgettable summer. With her head full of childhood memories and her heart set on reconnecting with old friends, River is determined to recapture the magic of simpler times. Enter Leo-the charming, unpredictable frat guy who makes it impossible for River to keep her walls up. With his laid-back confidence, easy banter, and genuine kindness, he pulls her into moments of joy and spontaneity, reminding her what it feels like to be truly alive. But River isn't looking for something serious. She's keeping her heart guarded, convinced that this summer has an expiration date, and so does whatever this thing is with Leo. As River navigates the delicate balance between falling for someone and keeping her distance, she's forced to confront what it really means to live in the moment. Can she protect herself from getting hurt, or will she let her heart lead her into the unknown?