Spooks: Series 4
The group is still reeling after the shocking events at the end of the last series. Now rising star Zafar joins the team as they set out to become even stronger in their battle to safeguard the nation. When London comes under terrorist attack, Adam is forced to make an impossible decision, Harry must deal with blackmail threats from an old flame, and Fiona faces her own demons when she goes undercover in Syria. The s
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- The group is still reeling after the shocking events at the end of the last series.
- The series follows the work of a group of MI5 officers based at the service's Thames House headquarters.
- The British Security Service works against the clock to safeguard the nation.
- Rising star Zafar joins the team as they set out to become even stronger in their battle to safeguard the nation.
Season overview
The group is still reeling after the shocking events at the end of the last series. Now rising star Zafar joins the team as they set out to become even stronger in their battle to safeguard the nation. When London comes under terrorist attack, Adam is forced to make an impossible decision, Harry must deal with blackmail threats from an old flame, and Fiona faces her own demons when she goes undercover in Syria. The series follows the work of a group of MI5 officers based at the service's Thames House headquarters, working against the clock to safeguard the nation in a tense drama about the different challenges faced by the British Security Service.
Episode Guide
Season 4 Progress Shield
The Special (1)
Sep 12, 2005
When a devastating bomb explodes in central London, causing multiple deaths, a terrorist group with a hatred for human life claim responsibility. With their leader facing extraditi
The Special (2)
Sep 13, 2005
Zafar and Adam race against the clock to uncover the latest bomb. As a new ultimatum is issued and Tash mysteriously disapears, the team is forced to deal with the possibility of a
Divided They Fall
Sep 22, 2005
Far-right political party The British Way is threatening democracy so Adam and Fiona go undercover to infiltrate and destroy its campaign.
Road Trip
Sep 29, 2005
Adam infiltrates a truck carrying illegal immigrants across Europe in order to stop a would-be terrorist.
The Book
Oct 6, 2005
A neo-conservative group murder an ex-minister to cover up his past and then they hunt down the journalist who is threatening to blow the story and is under MI5 protection.
The Innocent
Oct 13, 2005
MI5 suspect a terrorist is planning an attack from his prison cell. Guest stars Jimi Mistry.
Syria
Oct 20, 2005
The Syrian foreign minister tries to establish subversive contacts with MI5 at the opening of a cultural centre in London. Fiona is desperate to lead this mission and must confront
The Russian
Oct 27, 2005
An old British traitor is called in to infiltrate a Russian firm suspected of stealing secrets from GCHQ.
Diana
Nov 10, 2005
A former officer is convinced that MI5 killed Princess Diana and is determined to force the team to prove it.