Spooks: Season 5

Terrorists carry out several devastating attacks on British targets which lead to panic and new extreme legal measures being rushed through Parliament, but is there more to this than meets the eye?

While Juliet has to come to terms with her injury, MI5 begin to unravel a conspiracy which sees an elite group trying to take control of Britain. They eventually see that this goes much further than anyone expects.

Intelligence suggests that a thermobaric bomb is being sold to terrorists. Using Zaf as an insider, section D look to intercept the bomb before it does irreparable damage to London, but things don't go exactly to plan.

During a world conference which could signal the end of poverty in Africa, MI5 uncover two conspiracies which threaten an individual life and world relations. Is anyone using the conference for its intended purpose?

Ruth is witness to a stranger killing himself in a subway station and is led to a series of clues which will change her world forever.

Ros goes undercover with the Saudi royal family in order to investigate a Saudi prince who may have ties to al-Qaeda.

As Ros is held hostage at the Saudi Trade Centre, the team at MI5 must face the disturbing fact that the terrorists may not be Al-Qaeda after all.

Harry Pearce is less than pleased when he learns that MI-5 video surveillance of a suspected terrorist, Khalid Mansour, has been ruled inadmissible and that Mansour will be set free. On the steps of the courthouse moments after being released however, Mansour is shot and killed with the assassin, Daniel Ellis, promptly committing suicide. After a second suicide attack claims the life of a radical Muslim cleric, an anti-Islamic organization known as the Sons of Phineas claim responsibility. Though they have no information on the organization, MI-5 focuses on Steven Paynton, who runs a homeless shelter where both men lived before their attacks. They set up a sting to try and get Paynton to give them information on others he may have recruited to his cause. With racial tensions rising across Britain, Adam goes undercover to rope him in but when his young son disappears, he fears his job may cost him what is left of his family.

When MI5 are tasked with protecting a high profile witness in a war crimes trial, a former traitor reappears and asks Adam to trust him again.

Environmental terrorists take control of the Thames barrier just as a major storm surge threatens to flood the London area. They demand that the British government publish a secret document entitled Aftermath but MI-5 can't find it. It's apparent that the Deputy Prime Minster, the PM is away, knows far more than she is saying. Adam meanwhile continues to struggle with post-traumatic stress syndrome. When he enters the facility to negotiate with the terrorists, he suffers an attack and is unable to function. It's left to Ros to find a way in and convince their captors that they've won and the document will be published.