Season 9 · Episode 3 — Paroxocybin
Section D is forced to welcome an FSB officer onto the Grid to help track down Aibek, a rogue nationalist from the ex-Soviet state of Azakstan. Aibek is in the UK to find the last known sample of the nerve agent 'Paroxocybin'. The chase is on, but will the team find a way to stop the nerve agent falling into the wrong hands without ruining Anglo-Russian relations? Meanwhile, Lucas's personal life takes a passionate turn.
Season 9 episodes
E1Reeling after the explosion at the hotel, Section D is left considering the sacrifices they make as spies. But they are soon back in action…
E2The pressure is on for Beth when she goes undercover for MI5 for the first time. She is tasked with protecting an influential oil baron, Ro…
E3Section D is forced to welcome an FSB officer onto the Grid to help track down Aibek, a rogue nationalist from the ex-Soviet state of Azaks…
E4When a highly skilled trio of Chinese agents arrive in London for 48 hours only, the team must find out why they are here. Ruth goes underc…
E5The American president is on his way to London to chair top secret peace talks between Israel and Palestine, under the guise of his first s…
E6Relations between the CIA and MI5 are stretched after an American drone is hacked in Afghanistan whilst in British care, leading to the los…
E7Lucas is plunged further into the depths of his past when Vaughn takes his manipulations to a new level. Ruth is approached and followed by…
E8The team faces their toughest challenge ever: tracking down Lucas North, their Section Chief, friend and one of the best agents MI5 has eve…