本季情节贴合80年代的标志性事件,包括核战电影《浩劫后》(The Day After)的上映、前总统里根的星球大战演说、大卫-科波菲尔让自由女神像「消失」的神奇魔术。第四季的核心情节是「这个苏联间谍家庭如何生存(如何自保)」。与此同时,被囚禁在俄罗斯的双重间谍Nina有可能重返美国,与前情人Stan Beeman团聚。请注意这个「有可能」,因为现在谁也说不准。Jennings家的小儿子Henry本季有更多出境时间,他在前两集中经常与邻居Stan待在一起。上一季关注了Paige的变化,或许这一季要关注Henry的变化?此外,Keri Russell的怀孕不会写进剧情中。FX暗示该剧可能在本季或者第五季结束。
After her bittersweet success in series one, Karen has been promoted to Detective Inspector and seemingly given the authority she has long been fighting for. Just as she’s getting into the swing of her powerful new role, she is assigned an infamous unsolved case that will put her under intense scrutiny; from her boss, from the media, and ultimately, from sinister forces that would rather the past stayed in the past. The 1984 case of Catriona and Adam Grant has confounded investigators and intrigued the public like no other. Catriona, the charming young heiress to a vast oil fortune, and her two year old son Adam, were brutally kidnapped at gunpoint outside a fish and chip shop in Fife. The ransom notes that followed stirred up an uncontrollable press storm, but when the culprits fell silent, the police faltered, and Catriona and Adam were never seen again. Now, a man’s body has been discovered, with indisputable links to the original kidnap. With the first piece of evidence in decades, Karen must assemble an unbeatable team alongside her sincere and lovable sidekick DC Jason ‘Mint’ and the brilliant – but romantically complicated – DS Phil Parhatka. With the international renown of the kidnap and the constant pressure from Catriona’s father, Sir Broderick Grant, the team take on the biggest challenge of their careers to date. As Karen delves deeper into what happened in the autumn of 1984, political grudges and painful secrets reveal themselves, and it soon becomes clear… the past is far from dead.