In the chaos aboard the sinking Titanic, Mair Parsons is separated from her infant daughter, Catherine, and her travelling companion and future mother-in-law, Ethel Jenkins. The disaster changes all their lives. During her repatriation to Britain, Mair has time to reassess her life and knows that before she can find happiness she must find the truth about her absent mother, even if it means leaving her beloved Wales and Catherine behind. Her search takes her to London where she becomes a Nightingale Nurse at St Thomas's hospital and meets the exciting doctor, Andrew Baxter. With new love and a new career, can she be truly happy?