February 1940. Grace Paterson decides to join the Farming Army to help the front. Now every day is filled with work: plowing, caring for animals, harvesting. With her worries, Grace gradually forgets about her love for the handsome Sam Petrie, who went into the army, and about the relatives who abandoned her in childhood. In the huge estate in Dartford, she seems to find solace, but it is so difficult to cope with adversity when there is no one around , who could warm and comfort... The secret of the family worries Grace again: what if she is not a simple orphan? Everything becomes more complicated when Sam reappears in the girl’s life and a mysterious box appears that contains secrets from the distant past. Now she has a chance to find out everything about her family, but the main thing is to find happiness with her beloved man.