剧集呈现了二战时期，Märtha离开挪威前往美国白宫避难，和美国总统罗斯福 (Kyle MacLachlan)变得关系亲密的历程。在美国选民强烈反对卷入另一场世界大战之际，Märtha试图说服罗斯福，将她的国家和欧洲从纳粹德国手中解救出来。
根据英国商人葛雷维尔韦恩(Greville Wynne)的真实故事改编。 《信使》描述葛雷维尔（本尼迪克特·康伯巴奇 饰）在冷战期间与苏联线人欧列格潘科夫斯基(Oleg Penkovsky)，暗中协助中情局渗透苏联的核子计划，并提供了成功阻止古巴导弹危机的重要情报。
The knight Bo?ek searches for his missing son. Little Jan has run away from home, fired by stories of the children’s crusades. His father’s crusade is a journey into his own unconscious, where he is forced to confront his greatest fear.
