It’s the summer of 1919, and Ellen O’Brien has her whole life ahead of her. Young, in love and leaving home for her first job, the future seems full of shining possibility. But war is brewing, and before long, Ellen and everyone around her are swept up by it. As Ireland is torn apart by the turmoil, Ellen finds herself facing the ultimate test of love and loyalty. A hundred years later and Clare Farrell has inherited a dilapidated old farmhouse in County Meath.

1789. Pierre and Catherine Aubert, the Comte and Comtesse de Verais, have fled the palace of Versailles for their château, deep in the French Alps. But as revolution spreads through the country, even hidden away the Auberts will not be safe forever. Soon they must make a terrible decision in order to protect themselves and their children, from harm.

When Ali inherits her great-aunt’s house, she immediately moves her whole family in, despite the warnings that there is something strange about the place. Unfazed, Ali begins redecorating, going through the rooms, making each one her own with the help of her daughter, Kelly. But when under the wallpaper in Kelly’s new room they discover a scrawled message from 1944, Ali begins to question the history of the house as she knows it.

Dorset, 1935. Stationmaster Ted has never cared much for romance. Occupied with ensuring England’s most beautiful railway runs on time, love has always felt like a comparatively trivial matter. Yet when he meets Annie Galbraith on the 8:42 train to Lynford, he can’t help but instantly fall for her. But when the railway is forced to close and a terrible accident occurs within the station grounds, Ted finds his job and any hope of a relationship with Annie hanging in the balance.

Researching her family tree had been little more than a hobby - until Katie stepped onto Kingsley House’s sprawling, ivy-strewn drive. The house may be crumbling today, but it was once the intimidatingly opulent residence of the St Clairs, Katie’s ancestors. Arriving here 200 years later, emotion stirs in Katie: a strange nostalgia for a place she’s never seen before...and when Kingsley House comes up for sale, Katie is determined that her family must buy it.

It’s 1916 and, as war rages in Europe, Gráinne leaves her job in a department store to join Countess Markiewicz’s revolutionary efforts. It is a decision which will change her life forever. A rebellion is brewing, and as Dublin’s streets become a battleground, Gráinne soon discovers the personal cost of fighting for what you believe in. Decades on, student Nicky is recovering from a break-up when a research project leads her to her great-grandmother’s experiences in revolutionary Ireland.

1942. Three years into the war, Pam turns down her hard-won place at Oxford University to become a codebreaker at Bletchley Park. There, she meets two young men both keen to impress her, and Pam finds herself falling hard for one of them. But as the country’s future becomes more uncertain by the day, a tragic turn of events casts doubt on her choice. Present day. Julia is struggling to juggle her career, two children and a husband increasingly jealous of her success. Her brother presents her with the perfect distraction: photos of their grandmother as a young woman at Bletchley Park.

When Gemma discovers a pair of ancient duelling pistols encrusted with rubies in the basement of the local museum, she is immediately intrigued. On a fateful night in 1838 two sisters were found shot in the cellars of Red Hill Hall. And when Gemma begins to delve deeper into their history, she begins to realise that the secrets of that night are darker than anyone had ever imagined. As the shocking events of the past begin to unravel, Gemma’s own life starts to fall apart.

1861. George’s life changes forever the day he meets Lucy. She’s beautiful and charming, and he sees a future with her that his position as the second son in a wealthy family has never offered him. But when Lucy dies in a suspected poisoning days after rejecting George, he finds himself swept up into a murder investigation. George loved Lucy; he would never have harmed her. So who did?

1911. As Emma packs her trunk to join the ocean liner Olympic as a stewardess, she dreams of earning enough to provide a better life for both her sisters. With their photograph tucked away in her luggage, she promises to be back soon - hoping that sickly Lily will keep healthy and wild Ruby will behave. But neither life at sea nor on land is predictable, and soon the three sisters’ lives are all changed irrevocably.

Adelaide Hills, Christmas Eve, 1959. At the end of a scorching hot day, a local deliveryman makes a terrible discovery. A police investigation is called, and the small town of Tambilla becomes embroiled in one of the most shocking and perplexing murder cases in the history of South Australia. Many years later and thousands of miles away, Jess is a journalist in search of a story. Having lived and worked in London for nearly two decades, she now finds herself laid off from her full-time job and struggling to make ends meet. Until a phone call out of nowhere summons her back to Sydney.

London 1940. As the war rages in Europe, Rose Brown steps on board a ship bound for America, hoping to escape the danger. She's frightened, but her widowed mammy and three sisters in Ireland need the money she earns as nanny to the rich Townsend family. But while Rose plays with baby Sarah in the salty spray on deck, disaster strikes, and the ocean liner begins to sink. In the chaos, Rose and the baby are separated from the family.

Dublin, 1952. When Mary Kate Ryan receives a surprise inheritance from the woman who abandoned her as a tiny baby, she’s stunned. All her life, she has longed to know why her mother disappeared, and now she’s devastated to realize that every lonely night she spent without a home or family of her own, her mother knew exactly where she was.

Robinswood, Co. Waterford, 1939. The once grand house is home to two very different families. Despite delusions of grandeur, Lord and Lady Kenefick and their adult children live a life of decayed opulence as the money needed to keep such a large house and grounds ever dwindles. Meanwhile, the Murphy family, Dermot, Isabella and their three almost grown-up girls, live and work on the estate and do their best to keep everything running smoothly.

Present day: Emma Lovett, who has dedicated her career to breathing new life into long-neglected gardens, has just been given the opportunity of a lifetime: to restore the gardens of the famed Highbury House estate, designed in 1907 by her hero Venetia Smith. But as Emma dives deeper into the gardens’ past, she begins to uncover secrets that have long lain hidden.