在一次反恐行动中，由于情报失误，英国特警部队误杀了一名怀抱孩子的中东移民，负责行动队的首长决定将这宗丑闻彻底抹去，遂找来了知道真相的队员们统一口径，录制假口供。刑侦队长史蒂夫（马丁·康普斯顿 Martin Compston 饰）对于首长的决定十分不满，于是辞去了职务，被调往隶属于英国反贪署的秘密行动组。 史蒂夫的任务是调查一位名为托尼（连尼·詹姆斯 Lennie James 饰）的侦缉总督察，他因为涉嫌贪污而被列入了监视的名单。史蒂夫和女警探凯特（薇琪·麦克卢尔 Vicky McClure 饰）一同打入了托尼所领导的小组内部，史蒂夫却意外的发现，凯特还有另外一重秘密的身份。
播出日期: 2017-03-26
运行时间: 58 min
概述: DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation.
播出日期: 2017-04-02
运行时间: 60 min
概述: AC-12 crank up their investigation into Operation Trapdoor. Kate makes progress in her undercover role.
播出日期: 2017-04-09
运行时间: 60 min
概述: As AC-12 wrestle with the new forensic evidence casting doubt over Tim Ifield, Kate is approached by another woman claiming to have been assaulted by Michael Farmer.
播出日期: 2017-04-16
运行时间: 59 min
概述: Roz's husband Nick is brought in for questioning by AC-12. But while Nick denies any involvement in Steve's attack, his suspicions about Roz mount.
播出日期: 2017-04-23
运行时间: 59 min
概述: DCI Roz Huntley struggles to allay her husband's suspicions. AC-12 find a new angle to pursue their case against her.
播出日期: 2017-04-30
运行时间: 58 min
概述: While Nick Huntley faces lengthy questioning, AC-12 remain convinced of Roz's involvement.
