Pembroke revolves around the complexities of love, willpower, and societal expectations set against the backdrop of a traditional New England village. The story focuses on Barnabas Thayer and Charlotte Barnard as they navigate their complicated relationship, particularly through tensions arising from political and personal disagreements. The novel opens with Barnabas preparing to visit Charlotte, his intended bride, only to be turned away after a quarrel between him and Charlotte's father, Cephas Barnard, over their differing political views. This argument leaves deep emotional scars, especially for Charlotte, who longs for Barnabas but is bound by her father's rigid expectations. The story delves into the characters' inner thoughts, highlighting their desires, struggles, and the societal pressures that constrain them. The natural beauty of the changing seasons contrasts with the emotional turmoil they face, setting the stage for interpersonal conflicts and the exploration of love, duty, and the evolving dynamics of a rapidly changing world.