S04 Episode 1
The Special
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.
51 mins · Mon, 12 Sep 2005
S04 Episode 2
The Special
Harry and Juliet are in a power struggle, while Adam and Zaf continue their fight against the American extremist group Shining Dawn.
51 mins · Tue, 13 Sep 2005
S04 Episode 3
Divided They Fall
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.
52 mins · Thu, 22 Sep 2005
S04 Episode 4
Road Trip
Adam and Zaf are sent to Istanbul where they attempt to move a terrorist away from his extremist ideals.
51 mins · Thu, 29 Sep 2005
S04 Episode 5
The Book
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.
52 mins · Thu, 6 Oct 2005
S04 Episode 6
The Innocent
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.
52 mins · Thu, 13 Oct 2005
S04 Episode 7
Syria
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.
52 mins · Thu, 20 Oct 2005
S04 Episode 8
The Russian
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?
52 mins · Thu, 27 Oct 2005
S04 Episode 9
The Sting
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. When the freed suspect kills two MI5 officers, however, Juliet holds Harry responsible and immediately dismisses him. With the freed suspect now planning a major terrorist attack, the team must race against time to track him down.
51 mins · Thu, 3 Nov 2005
S04 Episode 10
Diana
On the eve of her stepbrother's suicide, 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 decides to take matters into her own hands, visiting the Grid with a deadly proposition.
51 mins · Thu, 10 Nov 2005
