MI-5

1Season 4

S4.E1 ∙ The Special: Part 1

Mon, Sep 12, 2005

When an American extremist group sets off a bomb in London, promising more attacks if their demands aren't met, the team must act fast to prevent any more casualties.

2Season 4

S4.E2 ∙ The Special: Part 2

Tue, Sep 13, 2005

Harry and Juliet are in a power struggle, while Adam and Zaf continue their fight against the American extremist group Shining Dawn.

3Season 4

S4.E3 ∙ Divided They Fall

Thu, Sep 22, 2005

When MP William Sampson announces he is crossing the floor to join the far-right party The British Way, it is up to Adam to infiltrate and destroy the party from the inside.

4Season 4

S4.E4 ∙ Road Trip

Thu, Sep 29, 2005

Adam and Zaf are sent to Istanbul where they attempt to move a terrorist away from his extremist ideals.

5Season 4

S4.E5 ∙ The Book

Thu, Oct 6, 2005

Harry mourns the suicide of a retired MI-5 officer until a journalist informs Harry the officer was murdered because he'd been about to sell his autobiography and expose a lifetime of service secrets.

6Season 4

S4.E6 ∙ The Innocent

Thu, Oct 13, 2005

An attack is orchestrated by an Algerian terrorist in prison, and the decision is made to free him in order to gain more information about his plans.

7Season 4

S4.E7 ∙ Syria

Thu, Oct 20, 2005

Fiona goes undercover as a PR executive in order to rendezvous with the Syrian Foreign Minister, Riyad Barzali, who has indicated he wants contact with MI-5, but can't shake the constant surveillance of his secret service.

8Season 4

S4.E8 ∙ The Russian

Thu, Oct 27, 2005

After the death of Fiona, Adam is tasked with the investigation of Oleg Korsakov, a multi-millionaire Russian investor, who the government see as the saviour of the NHS. Is his offer of financial intervention too good to be true?

9Season 4

S4.E9 ∙ The Sting

Thu, Nov 3, 2005

As Britain teeters on the brink of war with Iran, Harry prevents an unofficial extradition of a terrorism suspect by the CIA, thinking he poses no serious threat to national security.

10Season 4

S4.E10 ∙ Diana

Thu, Nov 10, 2005

Ruth is visited by his partner Angela, an ex-MI5 officer, who asks Ruth for help in proving that MI5 killed Lady Diana. When Ruth refuses to help her, Angela takes matters into her own hands, visiting the Grid with a deadly proposition.