March, 1941. After Flo Butterworth loses everything in Manchester's Christmas Blitz, she decides to leave the area and join the Women's Land Army. Putting the past firmly behind her, she arrives at Rookery House in Norfolk hoping for a new start and a chance to do the gardening work she loves. The grip of war has intensified and growing more food is vital to keep the nation going. Thea buys an extra field to grow crops, and in the village, her sister Prue leads members of The Mother's Day Club and Women's Institute as they take on a derelict allotment. Meanwhile the construction of a nearby aerodrome disrupts village life and brings even more new residents to Rookery House, including Hettie's difficult sister, Ada. With Rookery House now bursting at the seams, will it still be the happy home it's always been?