Michael Dunnagan was never supposed to sail on the Titanic, nor would he have survived if not for the courage of Owen Allen. Determined to carry out his promise to care for OwenÂs relatives in America and his younger sister, Annie, in England, Michael works hard to strengthen the familyÂs New Jersey garden and landscaping business.Annie Allen doesnÂt care what Michael promised Owen. She only knows that her brother is goneÂlike their mother and fatherÂand the grief is enough to swallow her whole. As Annie struggles to navigate life without Owen, Michael reaches out to her through letters. In time, as Annie begins to lay aside her anger that Michael lived when Owen did not, a tentative friendship takes root and blossoms into something neither expected. Just as Michael saves enough money to bring Annie to America, WWI erupts in Europe. When AnnieÂs letters mysteriously stop, Michael risks everything to fulfill his promiseÂand find the woman heÂs grown to loveÂbefore sheÂs lost forever.