London, 1940. The war is raging across Europe, and 23-year-old Grace is devastated by the loss of her husband, Brian, at Dunkirk after only a year of marriage. Her secretary job at a law firm keeps her mind from dwelling on her sorrow, but when her boss, James, enlists in the air force Grace is left without work. Alongside her best friend, Helen, the Grace joins the War Office in a move that will change their lives forever.

As war looms in Europe, 18-year-old Jane Shaw runs the household as an unpaid servant on a meagre budget. When tragedy strikes and she loses her beloved younger brother in suspicious circumstances, Jane takes a position in service looking after Ned, a troubled young boy. Here she meets dashing David Heron, Ned's Uncle and they form an immediate attachment until she is dismissed after being accused of stealing a piece of jewellery. Returning home, Jane and her sister, Melia, are soon orphaned and left at the mercy of their Aunt Alice.

Bristol 1939. At forty years of age, Mary Anne Randall still turns heads. With an abusive husband spending most of his wages on beer, she has resigned herself to be the sole breadwinner to protect her family and keep the wolves from the door. In order to make ends meet, Mary Anne runs a pawnbroking business from the wash house at the end of the garden. Following the outbreak of war an opportunity presents itself to escape her loveless marriage and find true love. Will she take that chance, or carry on living just for her children and not for herself?

Maggie Bailey has not had an easy childhood. Her father, Michael, always too easy with his fists after spending the family’s rent money down the pub. Just sixteen, in love and blinded by promises, Maggie sees marriage to handsome Jack as her great escape. However, she soon finds herself abandoned with a beautiful baby when Jack disappears. Maggie is forced to seek a new life away from the East End of London and finds herself a job at a hotel in Yarmouth.

London 1941. Sirens warn of danger as German bomber planes approach the city. Ever cautious, Kathy and her mother head immediately for the nearest public air raid shelter, and when the building is destroyed in a direct hit, it is a miracle Kathy survives. Finding herself alone, Kathy is left with nothing but a burning fury and a determination to join the war effort.