Long before Melody and Jason began their journey together, her parents had a love story of their own. During a visit to Fort Jackson, it's finally time for Melody to learn more about the mother she never had the chance to know. Meanwhile, Jason is attempting to plan a surprise second wedding ceremony in order to recreate the memories Melody no longer has. But as one family struggles to begin, another is being torn apart. It's going to take more than a little luck of the Irish to keep everyone together.