Episodes
- S4 E1 - The Special: Part 1September 11, 200556minA terrorist bomb devastates London. Can MI5 catch the perpetrators before another strike?Free trial of BritBox
- S4 E2 - The Special: Part 2September 12, 200558minAs the hunt for the bomb maker continues, Adam races to save the life of one of his team.Free trial of BritBox
- S4 E3 - Divided They FallSeptember 21, 200558minAdam goes undercover to destroy a far right political party from within.Free trial of BritBox
- S4 E4 - Road TripOctober 31, 200258minMI5 discover that an Islamic terrorist is planning to enter the UK and launch an attack.Free trial of BritBox
- S4 E5 - The BookOctober 5, 200557minHarry discovers an ex-MI5 officer's suicide was staged and vows to avenge his murder.Free trial of BritBox
- S4 E6 - The InnocentOctober 12, 200558minA suspect planning a terror attack from prison is released to lead MI5 to other plotters.Free trial of BritBox
- S4 E7 - SyriaOctober 19, 200558minAdam and Fiona's marriage is tested when she insists on going undercover.Free trial of BritBox
- S4 E8 - The RussianOctober 26, 200559minThe team investigate a Soviet investor who the government see as the saviour of the NHS.Free trial of BritBox
- S4 E9 - The StingNovember 2, 200558minHarry's stand against the CIA's extradition policy on British Muslims gets him sacked.Free trial of BritBox
- S4 E10 - DianaNovember 9, 200559minA legendary ex-spy pays a visit to Thames House with a bomb and holds the team to ransom.Free trial of BritBox
Details
More info
- Content advisory
- Violence alcohol use foul language sexual content
- Audio languages
- English
- Subtitles
- English [CC]
- Studio
- BritBox
By clicking play, you agree to our Terms of Use.