When Grace Dawson and Mason Hamilton meet, sparks fly. Grace meets the love of her life the day he is leaving for basic training. The feeling is mutual and is just as deep for Mason. They write letters to one another, getting to know each other on a whole new intensity and neither knowing this kind of love existed until it was theirs. It's 1972, and the Vietnam War is still raging on, full of danger and sorrow. Mason promises he'll be back, and Grace promises she'll be waiting. But is it a promise Mason can keep? Grace never believed in love at first sight, but she now knows, without a doubt, it's real. It's strong, and it's pure. Her heart will never be the same, and she wouldn't have it any other way—for true-love stories never end.