Harry takes Lucas along to meet a onetime informer who says he has information on the bombing of a British Embassy some 15 years ago. That case is one Harry would very li ...

A kidnapped Harry Pearce is kept prisoner in an abandoned warehouse without really knowing what his captors want. When men try to kidnap Ruth, now married and with a step ...

With the Russian mole inside MI-5 now in custody, the team tries to decipher the information Lucas North obtained in Moscow. It is apparent that the Russian intelligence ...

Sugar Horse is revealed to be a network of sleeper agents in Russia. They are there for use only in the direst of circumstances. Just as the West's relations are on the b ...

With the military situation in the Middle East rapidly deteriorating and a UN Special Envoy about to hold crisis talks in London, MI-5 come across a teenager selling a hi ...

MI-5 try to stop a ruthless City financier who is out to force the collapse of a major bank. Manipulating the market is Alexis Maynell's specialty. Ros Myers goes underco ...

MI-5 is approached by Mohammed Khordad, the number 3 man in Al Qaeda, for a meeting. Under normal circumstances, they wouldn't even think of meeting the leader of a terro ...

When a Pakistani agent informs them that there is an Al Qaeda cell planning an attack in London, MI-5 go into action. They already have an agent in place in the terrorist ...

Convinced that his Russian counterpart in London, Arkady Katchimov, is behind the Al Qaeda bombing that killed Adam Carter, Harry Pearce launches an unauthorized investig ...

MI-5 is having a particularly busy day. They have just exchanged spies with the Russians and welcome the return of Lucas North after 7 years of imprisonment. Harry Pierce ...

War with Iran finally averted, the team learn that a London school will be the target of hardliners resisting the new peace. Simultaneously they discover that their lost ...

After Yalta's attack on their satellite network, America is planning air-strikes on Iranian nuclear facilities. Harry's team are suspended from the Grid following the Ros ...

Ros's relationship with Yalta is revealed. With limited options, she turns herself in, but convinces Harry that his best option is to send her back out as a double agent. ...

Adam and Ros board an airplane to identify a courier carrying nuclear weapons technology to Iran. Jo and Malcolm race to prevent the poisoning of London's water supply wh ...

Abdul Kharami is a suspected terrorist who is under constant surveillance but manages to evade his watchers just as MI-5 receives reliable information that he may be read ...

The crash of a cargo airplane near a secret US army base diverts MI-5's attention from the Iran situation. The Ministry of Defense has put out press releases saying it wa ...

With the virus spreading, Harry Pearce decides to take extraordinary action to find out who might have an antidote. They determine that one of four countries likely has i ...

Just as the British launch a peace process meant to stabilize its relations with Iran, MI-5 learn that a rogue Iranian intelligence officer, Megan Asnik , may be plotting ...

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 publis ...

A group of terrorists take the occupants of the Saudi-Arabian trade center hostage threatening to kill one person every hour until their demand for the release of certain ...

Zaf is undercover with a group of Al Qaeda terrorists who plan on exploding a thermobaric bomb in central London. Adam's solution is to buy the bomb before the terrorists ...

Juliet Shaw was severely injured in the attempt on their lives and is recovering in hospital. The third planned attack - having two commercial airliners collide in mid-ai ...

Adam survives the assassination attempt by Angela Wells but while he is in hospital recovering, major terrorist attacks are directed against fuel depots crippling British ...

Harry Pearce and the entire team are taken prisoner by a retired ex-agent, Angela Wells, who believes she has evidence that the British security services killed Princess ...

Harry Pearce is suspended from duty when he refuses to let the CIA forcibly extradite - meaning kidnap - a UK citizen who is suspected of being a terrorist. Harry is just ...

When MI-5 learn that Nazim Malik, a suspected terrorist who has been held without trial for two years, is planning a terrorist attack, Harry Pierce arranges for him to be ...

When a retired senior member of the Security Service, Clive McTaggart, is found dead in his home, it's put down to suicide. The man had been suffering from cancer so suic ...

After an agent is killed in Istanbul, MI-5 fears that a known terrorist, Yazdi, is trying to infiltrate the UK to stage an attack. The agent in Istanbul had identified a ...

After the police raid a house and find evidence that terrorists may be planning an attack in London with Sarin gas, Danny and Fiona Carter, who has now transferred to MI- ...

When soldier of fortune Robert Morgan is caught digging up weapons in what was an old Soviet arms stash, he is turned over to MI-5 for questioning. The security agents de ...

When the infant child of a fading but recently knighted rock star is kidnapped from his home, the Government wants MI-5 rather than the police to take charge of the inves ...