马克（安德鲁·斯科特 Andrew Scott 饰）回到了阔别已久的家乡，见到了祖母贝蒂（朱莉娅·麦肯茨 Julia McKenzie 饰）和表妹朱迪。然而，本该熟悉的一切却让马克感到十分陌生。马克曾经的初恋情人爱丽丝（夏洛特·莱李 Charlotte Riley 饰）如今已经结婚生子成为了一名母亲，可即便如此，马克还是发现自己内心里重新燃烧起了对于爱丽丝的感情。
露西（凯莉·亚当斯 Kelly Adams 饰）、卡里（艾斯林·贝亚 Aisling Bea 饰）和杰夫（山姆·特劳顿 Sam Troughton 饰）是马克当年非常要好的玩伴，但如今几人再度聚首，场面却不如想象里那样的愉快和美好。既然这里早已经物是人非，马克不知道自己还该不该留在此地。
“In the early 1990s, at the height of the international war on drugs, the government agency in charge of Britain’s borders, Her Majesty’s Customs and Excise, realized that they were losing the battle against drug smuggling. Their solution was extraordinary,” reads the logline. “In a top-secret operation, a small team of British Customs employees were sent undercover. Their task – to infiltrate Britain’s most dangerous drug gangs.” “They were not trained spies. These were ordinary men and women, plucked from ordinary lives around the U.K, put through a basic training regime then told to build new identities in the criminal underworld. These identities were called Legends.
改编自维克托·拉瓦列2013年的小说《The Devil in Silver》。聚焦搬运工人Pepper（丹·史蒂文斯 Dan Stevens 饰），因为坏运气和坏脾气，他被送到了一所名为New Hyde的精神病院，里面满是被社会遗忘的人。Pepper想要获得自由，就必须面对与他作 对的病人、怀着阴森目的的医生，甚至恶魔本人。这里是地狱般的地方，任何事情都不是表面那样，Pepper必须直接面对一个以New Hyde里人们的苦痛来蓬勃壮大的存在，但这样可能会证明：最可怕的恶魔恰恰是他自己。
