In the early 1990s, Her Majesty’s Customs and Excise was losing its battle with illegal drug smuggling across Britain’s borders. In a top-secret operation, a small team of Customs employees were sent undercover with new identities and told to infiltrate Britain’s most dangerous drug gangs.

Following the conviction of some of those involved in the theft and handling of the Brink’s-Mat gold, the police realised that those criminals only ever had half of it. Series two explores what happened to the other half, and the criminal fortune it created. As the police investigation continues, it becomes a tense, high-stakes journey into international money laundering and organised crime, while the police embark on dramatic manhunts as they desperately try to solve the longest and most expensive investigation in the history of the Metropolitan Police.

BBC与Paramount+合作的这部六集剧集取材于有着“世纪之罪”之称的Brink’s-Mat抢劫案。1983年11月26日，六名带有武器的劫匪在希思罗机场附近的Brink’s-Mat仓库，原本策划实施现金抢劫的他们，却阴差阳错发现了由庄信万丰公司持有、多达3000公斤的金条；最后，他们掠夺了价值2600万英镑的黄金、钻石和现金，并成功逃脱。 抢劫之后的大部分黄金都没有被追回，也仅有其中两名参与者被定罪。但这次重大的事件却造成了各种余波：曾经的庄信万丰银行陷入危机最后倒闭，伦敦码头区房地产涌入了脏钱，也流进各种国际范围的犯罪活动；至于“Brink-Mat的诅咒”也悄然而起，因为当初参与的人在后续的几十年前都最终死于枪杀。