Spooks, The Special (Part 1)

Danny's funeral is brought to an abrupt halt when a bomb blast occurs in central London - heralding the start of an extensive terror campaign.

Zafar and Adam race against the clock to uncover the latest bomb, and the team begins to suspect there is a mole within their organisation.

Adam and Fiona infiltrate a right-wing extremist political party intent on wrecking democracy.

Adam and Zafar travel to Turkey to persuade an Islamic terrorist to defect - but the team is uncertain whether its new recruit is all he seems.

The team protects a journalist about to break the story of a former Cabinet minister with a shady past who was murdered by a neo-conservative group..

The agents organise the release of an imprisoned terrorist they suspect of planning an attack from his cell, but find their assumptions challenged as they track his movements.

Fiona defies Adam's wishes and goes undercover to handle security at a conference. She discovers her ex-husband is also attending - and planning to exact revenge for the past.

The agents rely on a well-known traitor as they infiltrate a Russian company, but Adam's state of mind could prove just as dangerous to the operation.

Harry makes an enemy of the CIA when he stops an illegal extradition, prompting the American agency to clamour for his sacking.

A former spy holds the team hostage, demanding its members produce evidence that the security services assassinated Diana, Princess of Wales.