With London still in the grip of war, Cordelia, Mavis, and Jane find themselves facing a new challenge. Determined to make a difference, the librarians band together to organise rent strikes, standing up against dirty landlords and unfair practices. Meanwhile, with the arrival of American GIs in the East End, Cordelia is presented with a temptation too irresistible to bear. Should she follow her head or her heart - stay faithful to her beloved Robert fighting abroad, or enjoy the brief respite from the constant air raids and destruction? As the women fight for what's right, the promise of a better tomorrow begins to take shape. But will their efforts be enough to secure a better life for their community?