Do you want to dance? One question that will change two lives forever. In her trio of friends, Erica is the responsible one. Painfully shy, and the son of a Baptist minister, Linc is an unlikely Marine. The moment their eyes meet, it's love at first sight. With Linc's deployment to Iraq threatening to end their blossoming romance, Linc makes Erica what seems like an impossible promise. If she marries him, he'll come home alive. One week later, Linc is gone. Through a series of letters, they have they chance to grow closer and fall even deeper in love. When tragedy strikes, all they have are letters, love and their shared faith. Will it be enough or will Linc's promise be broken?