The deeply corrosive influence of an old acquaintance becomes clear for Andrew. Meanwhile, the tragic recent history of Laura’s family helps explain the deep bond she and Katy share, as…

Emily and Nick devise a plan to infiltrate the refugee camp, and Cal poses as a Meridian guard in hopes of finding Armstrong and bringing him to justice. Meanwhile, Crown…

Emily and Nick are finally reunited with Flynn back in Boston, but the threat of Elliot’s bioweapon still looms large. Emily resorts to drastic measures and make a dangerous choice…

Emily is serving out the final days of her FBI suspension while struggling to come to terms with the consequences of her actions from the last two seasons. Hyper-vigilant and…

Following the deadly events, Emily must race against time to find and save Nick, with the help of his mysterious informant, Kai. Upon tracking his location, Emily realizes there is…

Disoriented and drugged into a paralytic state, Nick wakes up in a dark and confined location. Meanwhile, without a body as proof, Emily refuses to accept that Nick is dead…

Emily’s demand for the FBI to go after Nick is met with resistance, which leads her to set in motion a risky plan that puts her face-to-face with the one…

Emily makes a final attempt to trade the stolen files for Nick and demands proof that he is alive, unaware that Nick has escaped from his captors in a thrilling…

Harry discovers there’s a mole at large in the Grid. Meanwhile, Ros and Adam board a plane undercover in an attempt to stop Iran becoming a nuclear power.

A live TV broadcast announcing the new peace accord between the UK, US and Iran is hijacked by armed gunmen. Can Adam and Ros defuse the situation before someone’s hurt?

MI5 has to intercept a Russian arms dealer who plans to pass blueprints for a nuclear device to Iran. Adam and Ana decide to bring their relationship to a close.

Zaf and Adam participate in a mission in Tehran that goes wrong. As the investigation advances, the team realizes they’ve been lied to as to the goals of their mission.

The country faces a plague outbreak. In a race against time, the officers from Section D have to track down and quarantine everyone who might be infected, while preventing a…

A British plane is thought to have been hijacked and taken to an American airstrip. Ros is captured by the Yalta organisation when the team shows up and they learn…

As an Algerian extremist escapes his home detention, the team fears he may be plotting a terror attack on US businesses in the UK with the help of local Iranians….