第十二季共4集
　　1、The Clocks 怪钟
　　2、Three Act Tragedy 三幕悲剧
　　3、Hallowe'en Party 万圣节前夜的谋杀案
　　4、Murder on the Orient Express 东方快车谋杀案

故事发生在19世纪末一座位于牛津郡的小小村庄里。劳拉（奥莉薇娅·哈琳安 Olivia Hallinan 饰）的母亲即将临盆，为了给新生儿挪地方，家人们决定将劳拉送到隔壁镇的邮局工作，由居住在那里的表姐道卡斯（茱莉亚·萨瓦哈 Julia Sawalha 饰）照顾。初来乍到的劳拉因为土气的装扮和内向的个性，在新环境里处处遭到排挤，好在温柔的道卡斯一直都坚定的支持着她。
　　邮局昂贵的邮寄费用让小镇居民们心生怨气，直到有一天，一位名叫奎尼（琳达·巴塞特 Linda Bassett 饰）因为支付不起邮费，而错过了见自己弟弟最后一面的机会。这件悲剧激化了居民们和邮局之间的矛盾。

When Dorcas and Emma each want to give Laura the same gift for Christmas, an old family wound is opened up and Laura finds herself torn between two mothers. As the inhabitants of Lark Rise and Candleford prepare for the festivities, loyalties are tested and, amid the gift-giving and carol-singing, tensions are building. However, the arrival of a ragged, barefooted young woman, who goes by the name of Cinderella Doe, introduces a note of Christmas mystery. Dorcas also receives a Christmas letter from Sir Timothy.