Elizabeth Roby lives a content and privileged life in London with husband Jonathon and children, Emily and George. But with the outbreak of war, everything changes. Jonathon informs his family that they have to move from their smart London home to the riverside town of Wivenhoe and their new home Harbour House, where Jonathon will do his duty for his country as part of the Admiralty at the shipyards. But Elizabeth is devastated. How will she start a new life in a place she hardly knows, surrounded by strangers?

Eldest sister Frances is about to marry her childhood sweetheart. But with Marcus Danby now a fighter pilot, his fate hanging in the balance. Will he return from war for their happy ever after? Meanwhile youngest daughter Emily is swept off her feet by a dashing young officer, but does she really know him? Brother Daniel has joined up, but not before falling in love with a local kitchen girl Alice. Against the backdrop of war is there hope of a future for them?

1910 Liverpool Docks. Ruby Swift is a hard-working, straight-talking woman of substance who does not suffer fools gladly. But when tragedy strikes on a bitter Christmas Eve, Ruby and her beloved Archie take matters into their own hands when a trusted employee’s house is mysteriously engulfed by flames and lives are lost. Orphaned by the fire, Ruby welcomes heartbroken 16-year-old Anna Cassidy into her home and family, but circumstances conspire against them, and she is unable to save Anna's 12-year-old brother Sam Cassidy, who is sent by the church to Canada as a Homeboy.

With the country on the brink of war, single mother Jean embraces her ten-year-old daughter, Valerie, before she puts her on a train to Somerset alongside hundreds of other evacuees. Jean’s heart breaks as she vows they’ll be together again soon, knowing it’s a promise she might not be able to keep. Wrenched away from her mother and everything familiar, Valerie arrives in Somerset and nervously waits in the village hall to find a host family.

Dora Fairweather wasn’t cut out to be a wife and mother, and as soon as she’s able, she turns her back on her young daughter Lissie. With no parents to protect her, Lissie has no option but the dangerous streets of soot-sodden Bradford or the workhouse orphanage. Life in the orphanage is bleak and Lissie longs for the warm embrace of her beloved father. As the years pass, Lissie learns to enjoy the camaraderie of the other girls in the workhouse, and when she’s taken under the wing of matron Connie Briggs, things begin to look up..