On the Greek island of Castellorizo young Sofía must put her dreams on hold to support her older sister Maria with her large family. But World War II is looming and while the idyllic island may seem far from harm at first, there are unspeakable dangers on the horizon – perils that will change the sisters' lives forever. Devastated by her divorce and the death of her dear mum, Olivia seeks solace on Castellorizo. Her Granny Sofía fled the beautiful Greek island during the war, but Olivia knows little else about her family's history. The only link to the Island she has left is her elderly great-uncle George. As his memory begins to fail, Olivia feels her one chance at uncovering the truth about her grandmother start to slip away. As a mother's sacrifice echoes throughout the generations, will Olivia discover some things are best left in the past?