Two childhood sweethearts. One failed summer romance. Twelve years later. On most days, Chelsea Scott feels like her rapidly growing planner and stationery business should belong to someone else. Maybe if it did, it wouldn't be hovering near the red due to one costly decision. But the collaboration that will save her company awaits her pitch at the trade show she's keynoting. When her transportation falls through at the last minute, she accepts help from Nick Pearson, who’s unexpectedly come back into her life. The last time Nick saw Chelsea, he told her he loved her, and she ran. Twelve years later, their lives are different, more complex than the summers they spent playing baseball and eating ice cream cones at their dock with their toes in the lake. But as they spend time together on the road, their feelings for each other become clear: all those years couldn’t take away how good they can be together. When Chelsea's past decisions resurface at the convention, her newly rekindled relationship with Nick – and her business – are in jeopardy. Will their love be enough to keep them together or will another summer end with them apart?