Four girls have different reasons for joining the Women's Land Army: patriotic Joyce wants to 'do her bit', argumentative Nancy is there under sufferance, and sensible Annie joined so that her younger sister Bea could escape an abusive father.

Bea has been hiding her pregnancy from everyone for three months, but it is becoming increasingly difficult. Tucker is on the prowl for enemy sympathisers and Nancy is in his sights.

Three months on, and Annie is not dealing very well with Harry's death. Nancy and Lawrence's attraction has blossomed into a full-on affair. Meanwhile, Esther is screening Nancy's letters for Sergeant Tucker, fearing that she might be a Nazi collaborator.

Farmer Finch hires some 'trekkers', families displaced by the bombing, as cheap labour, but when there is then a break-in at the manor house Lady Hoxley orders Finch to get rid of them all. A riot ensues and Tucker gets the dogs out.

Bea prepares for her wedding to Billy and discovers that Finch has doubts about her motives. Determined to leave, Nancy is shocked to the core when Ellen reveals Lawrence's dark secret. Will Annie choose her duty to Harry or her love for Adam?