Spooks Episode Guide

Episode Guide

Spooks: Season 10

• Season 10 Episode 6: EPISODE: 6

  Harry faces deportation to America, so he agrees to go quietly on the condition that the signing of the alliance between the UK and Russia be brought forward. But when Elena confides in Ruth that she has information about an imminent attack on the UK, Section D have no choice but to break their boss out of CIA custody. With all the main players assembled, the stage is set for a highly dramatic climax to the long-running spy drama

• Season 10 Episode 5: EPISODE: 5

  Harry kidnaps Jim Coaver and interrogates him about the recent attacks, but he soon realises the CIA deputy-director could be innocent. Before he can plan his next move, the Americans arrive to liberate their boss, at which point Coaver gives his old friend one final clue - vital evidence can be found on a laptop at the US Embassy, requiring Harry's team to steal the computer from under the noses of their fellow spies

• Season 10 Episode 4: EPISODE: 4

  An imprisoned religious extremist leader has his appeal for parole rejected, so he sends two recently released inmates on a suicide revenge mission, unaware one of the men is an MI5 spy. Section D needs him to gather intelligence - but things go disastrously wrong when his daughter is kidnapped by the bombers and used as collateral. Meanwhile, an attempt is made on Elena's life, strengthening Harry's suspicions about CIA deputy-director Jim Coaver

• Season 10 Episode 3: EPISODE: 3

  The team discovers that a dangerous anarchist, linked to a previous bombing campaign, has entered the country. Dimitri is enlisted to find out more by honey-trapping the man's sister - leading to a lethal game of cat and mouse. Meanwhile, the team realises the leaking of spies' names and the foiled assassination on Russian minister Gavrik are connected, with all evidence pointing toward the USA - but Harry's CIA friend Jim Coaver denies any involvement - and Ruth considers an offer to become the Home Secretary's security adviser

• Season 10 Episode 2: EPISODE: 2

  Calum is attacked by muggers who take his laptop containing classified information on MI5's undercover agents, leading to a race against time to prevent the next spy on the list being attacked. Meanwhile, Harry meets Elena at the ballet, but the Russian counter-intelligence agents are on her trail, forcing her son, Sasha, to take deadly action to prevent his mother being revealed as a former western spy. Peter Firth, Alice Krige and Geoffrey Streatfeild star

• Season 10 Episode 1: EPISODE: 1

  The team is reeling from Lucas's betrayal, with acting leader Erin Watts keeping things ticking over while Harry is under disciplinary action. But following a tribunal, the head of Section D is quickly back on the Grid, in time to investigate the assassination of a retired spy he worked with in Berlin during the Cold War. Meanwhile, Russia's foreign ambassador has arrived in London to negotiate a ground-breaking strategic partnership with the UK - and it seems he is the next target for the killer. Peter Firth heads the cast in the final run of the acclaimed spy drama, co-starring Lara Pulver, Geoffrey Streatfeild, Jonathan Hyde, Alice Krige and Simon Russell Beale

Spooks: Season 9 (2010)

• Season 9 Episode 8: EPISODE: 8

  Following Lucas's shocking revelations about his former life and double identity, Harry instructs the team to find him - at any cost. He enlists the help of a former internal affairs specialist to track down the fugitive, who is becoming increasingly desperate to locate the Albany file and flee the country with Maya. When Harry discovers Ruth has been placed in grave danger, he faces a tough decision that culminates in a showdown with Lucas

• Season 9 Episode 7: EPISODE: 7

  Ruth is approached by an official council snooper claiming to have witnessed covert activity. She initially dismisses his claims, but on learning the man has applied to MI5 four times and been rejected due to mental instability following his wife's death, she is empathetic and visits his flat to follow up the lead. However, she becomes embroiled in a dangerous situation linked to the death of a Mafia leader that Dimitri is investigating. Elsewhere, Lucas comes face-to-face with Harry Pearce in a confrontation that will change Section D for ever

• Season 9 Episode 6: EPISODE: 6

  It is agreed that Section D will use American security system Cybershell to avoid security breaches, and Lucas is tasked with protecting White House cryptographer Daniella Ortiz as she installs the necessary codes. However, Tariq discovers computers at the Grid have been infiltrated by suspected Russian and Chinese hackers, and it is only a matter of time before they will have access to the entire catalogue of information held by MI5 and the CIA

• Season 9 Episode 5: EPISODE: 5

  In a move to bring peace to Palestine and Israel, the US president travels to London to chair secret talks between negotiators from both countries, but the threat from a journalist to print the story indicates there is a leak. As Lucas investigates, he discovers a plan to assassinate the president, putting the team under immense pressure to locate the sniper and prevent an international scandal. Starring Richard Armitage

• Season 9 Episode 4: EPISODE: 4

  The team's suspicions are aroused when three highly skilled Chinese agents arrive in London. Ruth goes undercover at a major research corporation, where she learns the agents are looking for a brilliant scientist who has discovered a new formula worth billions, so Beth calls on the services of a mole she has been grooming to infiltrate the Chinese security services. But his trustworthiness is soon called into question. Colin Salmon guest stars, with Nicola Walker and Sophia Myles

• Season 9 Episode 3: EPISODE: 3

  When word gets out that the Azakstan Freedom Front is trying to acquire a lethal outlawed nerve agent, Harry sends Lucas to help the Russians destroy the sample. However, a member of the AFF travels to London in search of the substance, forcing the team to work quickly and welcome an FSB officer to the grid in a bid to track down the rogue nationalist and prevent a biological weapon that has the potential to wipe out the entire city in hours from being used. Guest starring Julian Lewis Jones (Where the Heart Is)

• Season 9 Episode 2: EPISODE: 2

  Beth Bailey is thrown in at the deep end on her first operation with Section D when she is tasked with protecting an influential oil baron whose life is under threat. However, Harry and Lucas are suspicious and, after launching a secret surveillance operation on the magnate's mansion, they discover he is planning an attack using a deadly ex-Soviet nerve agent, with potentially disastrous consequences. Starring Sophia Myles and Peter Firth

• Season 9 Episode 1: EPISODE: 1

  Lucas boards a boat heading from Tangier to Plymouth to track a Somali terrorist, and is saved from danger by Beth Bailey, an undercover mercenary posing as a sex worker. When it emerges that the vessel is carrying an explosive payload, the team fears the launch of the newest addition to the Royal Navy's fleet is the target. Beth's arrival at Section D brings new information and feelings of familiarity to Harry, who is forced to put aside his concerns about the source and take drastic action. Sophia Myles (Moonlight) joins the cast, with Peter Firth and Richard Armitage

Spooks: Season 8 (2009 - 2010)

• Season 8 Episode 8: EPISODE: 8

  With the conflict between India and Pakistan threatening to escalate into nuclear war, peace talks are hastily convened in London. However, the CIA agent in charge of security is secretly a member of the Nightingale group, with plans to assassinate Pakistan's president. Meanwhile, Sarah Caulfield has orders to murder Lucas, but struggles with her emotions, having fallen in love with him. Espionage drama, starring Richard Armitage and Genevieve O'Reilly

• Season 8 Episode 7: EPISODE: 7

  A teenage double agent reveals plans to incite conflict between Hindus and Muslims on British soil, but his handler is secretly working for rogue CIA operative Sarah Caulfield, who will go to any lengths to silence him. Unable to remove the frightened youngster from the terrorist cell, Lucas has his work cut out to ensure the boy remains co-operative. Starring Richard Armitage, with Tobias Menzies

• Season 8 Episode 6: EPISODE: 6

  An MI5 informant in a major bank, who could allow an almost bankrupt British government access to £1billion of illegal earnings, refuses to share vital data with Section D. Ros is dispatched to bring him in, but assassins are also on his trail - and she gets caught in the crossfire as they try to silence him. Espionage drama, guest starring Ewen Bremner, with Hermione Norris

• Season 8 Episode 5: EPISODE: 5

  Harry's suspicions about the death of CIA boss Samuel Walker are confirmed when three more intelligence officers are killed - fatalities that coincide with the re-emergence of Ros's former MI6 mentor, who asks her to read his memoirs. Finding inconsistencies in the retired agent's recollections, she begins to suspect a terrible plot has been put into action and risks her life to discover the truth. Guest starring former Doctors actor Stephen Boxer

• Season 8 Episode 4: EPISODE: 4

  Lucas's Russian torturer Oleg Darshavin visits London with information he is willing to share only with his former prisoner. Harry's fears that he retains a psychological hold over the agent appear to be founded when Lucas drops off the radar and invites Darshavin to his own flat - a move that jeopardises the operation when the CIA's Sarah Caulfield calls by during the meeting. Espionage drama, starring Richard Armitage and Peter Firth

• Season 8 Episode 3: EPISODE: 3

  Ros goes undercover at a gathering of the Bendorf Group, made up of eight of the world's richest men. When armed terrorists take them all hostage and put one of the members on trial live on the internet, she is locked in a booby-trapped bunker with the rest of the captives and forced to seek help from an unlikely source. Espionage drama, starring Hermione Norris and Peter Firth, with Antonia Campbell-Hughes

• Season 8 Episode 2: EPISODE: 2

  The government of Tazbekstan demands the right to execute its enemies on UK soil in return for replenishing the nation's dwindling energy supplies, but Jo and Lucas refuse to turn a blind eye. When the diplomatic effort fails, Section D masterminds a plan to kill the Tazbek trade secretary - and make it appear as if one of his targets is responsible. Espionage drama, starring Richard Armitage and Miranda Raison

  Next on: Wednesday 22nd February 10:00pm PST - KCETDT
• Season 8 Episode 1: The Message

  The agents are in a state of panic following Harry's kidnapping and their worst fears are confirmed when footage of his killing is posted on the internet, but Ros and Lucas refuse to accept their leader is dead and mount a mission to identify his captors. The discovery of his abductor's body destroys their strongest lead, and they turn to the new CIA liaison officer for help. However, the unexpected return of a former colleague holds the key to Harry's whereabouts and an international conspiracy. Drama, starring Hermione Norris and Richard Armitage

  Next on: Tomorrow at 10:00pm PST - KCETDT

Spooks: Season 7 (2008 - 2009)

• Season 7 Episode 8: Nuclear Strike

  A network of sleeper agents placed in strategic positions by the Russians plans a nuclear attack on London. Only the mole can help Section D prevent the atrocity so the team kidnaps the traitor, who is forced to admit under interrogation that a vital dossier is hidden at London Bridge. As agents from both sides meet at the landmark, they are welcomed by a hail of bullets. Last in the series

• Season 7 Episode 7: The Mole

  Harry is arrested after being framed as the mole who revealed classified information, and the head of MI5 orders his interrogation. With Britain under threat of nuclear attack from Russia, the whole team comes under suspicion and all communication is monitored. After a trusted contact is murdered, Lucas is horrified when he realises the identity of the double agent. Drama, guest starring Hustle's Robert Glenister

• Season 7 Episode 6: Accidental Discovery

  A teenager holds the key to an assassination plot having inadvertently witnessed a murder. After being sent to protect him, Lucas discovers the threat comes from inside the British security service. Harry is contacted by a Russian sleeper agent with a file containing information about the traitor inside his team, but he is unprepared for the shocking revelations he finds

• Season 7 Episode 5: On the Brink

  A businessman tries to undermine the British economy so Ros goes undercover at his company. When the suspect's assistant recognises Lucas from his days in Russia, Ros must use her powers of seduction to save the country from disaster and convince the schemer she is trustworthy. Drama, starring Hermione Norris and Richard Armitage, with Paul Rhys

• Season 7 Episode 4: A Chance for Peace

  An al-Qaida terrorist leader offers to exchange intelligence on a planned bombing campaign in London for the pardoning of two prisoners, but the team faces a difficult choice when it becomes clear that defusing the explosives would endanger Lucas's role as a double agent. Harry learns the identity of the traitor who passed information to the Russians, and . Drama, starring Peter Firth and Richard Armitage

• Season 7 Episode 3: The Tip-Off

  Ben infiltrates an al-Qaeda cell whose members are planning a bombing campaign in London, and accompanies them on what he thinks is a trial run - only to discover at the last minute that it is all too real. Disturbed to hear details of Lucas's flashbacks to his time in the Russian prison, Harry visits his mentor in an attempt to discover how classified information about a top-secret operation has leaked to the enemy

• Season 7 Episode 2: Split Loyalties

  Harry vows revenge on Kachimov following the explosion, but the government demands proof of Russian involvement. Lucas is desperate to return to the Grid, but doubts remain about where his loyalty lies. However, when Ros's attempts to blackmail an oil tycoon produce few results, it seems North may be needed after all. Drama, starring Peter Firth, Hermione Norris and Richard Armitage

• Season 7 Episode 1: New Allegiances

  A British soldier is kidnapped by al-Qaida, with the warning he will be killed unless Remembrance Day services are cancelled. Harry is reunited with his protege Lucas North, who has spent eight years in a Russian prison, while another agent who was sent to that country is uncovered and must make a dangerous journey home. Drama, starring Peter Firth and Richard Armitage.

Spooks: Season 6 (2007 - 2009)

• Season 6 Episode 10: The School

  The team races to stop a CIA plan to assassinate the Venezuelan president in Britain in the hope of gaining intelligence about an expected al-Qaeda attack on a school. Having identified the group of mercenaries that kidnapped Zaf, Jo too is snatched by them. Adam's attempts to gain her freedom result in a high-level conspiracy being exposed - and more tragedy for the Section D officers. Last in the series

• Season 6 Episode 9: Isolated

  The team is suspended following Ros's betrayal, but that leaves the agents in the line of fire for a disgruntled former IRA terrorist about to detonate a bomb in the heart of London. Adam decides the only way to prevent America going to war with Iran is to reveal the truth about the Tehran train explosion, but doing so would destroy all hopes of finding a diplomatic solution

• Season 6 Episode 8: Infiltration

  Ros's membership of Yalta is revealed after the organisation informs her of its plan to overthrow the American government. Working for both sides becomes her only option if she is to prevent their campaign and save her own life, but as Harry himself leads the team into the traitors' headquarters hoping to unmask the ringleaders, it might all be too late to stop the operation codenamed Floodland

• Season 6 Episode 7: The Broadcast

  Terrorists hijack a live TV broadcast that should have heralded the signing of a new peace agreement with Iran, and Malcolm must try to secretly disable the signal while allowing the infiltrators to believe they are still on air. As Adam and Ros try to diffuse the situation in the studio, a shot rings out leading to secrets and lies from all sides being revealed

• Season 6 Episode 6: The Courier

  When Ros's bugs inform Yalta that Harry intends to ground all planes to prevent a nuclear warhead circuit board reaching Iran, she and Adam go undercover on an airline flying to the country intending to identify the courier. Meanwhile, Jo and Malcolm must stop the poisoning of London's water supply, as threatened by terrorists seeking to guarantee that Iran does have nuclear capability

• Season 6 Episode 5: The Deal

  The failure of another attempt to limit Iran's nuclear threat proves every other nation has their own agenda and operates by their own set of rules. Adam kills a mugger who turns out to be a journalist investigating the Tehran bombing, and his day gets even worse when he has a final meeting with Ana and it becomes clear she has become compromised. Meanwhile, Yalta tests Ros's loyalties further

• Season 6 Episode 4: The Extremist

  Intelligence suggests an Algerian terrorist is planning an atrocity in London, so Adam returns to Ana for more information on the activities of her husband. Caught in the act, she kills an aide, leading Dariush to discover she is an MI5 mole. Meanwhile, Ros's Yalta contact informs her Bakhshi is not the culprit but the target of the expected attack, and working with the Americans proves difficult

• Season 6 Episode 3: The Kidnap

  When a plane is hijacked and crashed near an airbase in the UK it reveals the Americans were behind the false information which resulted in the disastrous Tehran operation. The discovery that Britain's closest ally is prepared to manipulate the UK for its own ends leaves Ros disillusioned and pushes her down a dangerous path towards betraying her country. Drama, starring Hermione Norris

• Season 6 Episode 2: The Virus: Part Two

  Part two of two. With Britain on the verge of a plague epidemic, the team must find a vaccine fast. To that end Harry orders the interrogation of spies from all nations likely to have it - a task he hands over to a trusted former colleague, Connie James. Each of the detainees is exposed to the virus - a tactic that helps them locate Zaf, and leads directly to secrets about the government's relationship with Russia

• Season 6 Episode 1: The Virus: Part One

  New series of the espionage drama, beginning a new serial format. An undercover operation planned to assassinate a suspected terrorist in Tehran results in disaster. Innocent civilians are allowed to die but the target survives and asks to defect. That's when it emerges Section D were set up, and the plot was really a means of releasing a lethal virus into Iran - which the team have brought back with them to Britain

• Season 6 Episode 1/2: The Virus

  A terror threat by a member of Iranian intelligence could jeopardize a peace deal with Iran.

Spooks: Season 5 (2006 - 2009)

• Season 5 Episode 10: Aftermath

  A group of environmental terrorists seize control of the Thames Barrier, threatening to flood London unless the Government release a secret document - one with far-reaching implications for the future of the planet. Adam and Ros try to diffuse the situation while a counter-offensive is planned, but end up putting their own lives in danger. Last in series, with Rupert Penry-Jones and Hermione Norris

• Season 5 Episode 9: The Criminal

  Adam is approached by his treacherous former partner Richard Dempsey, who sold him out during an operation in Serbia 15 years earlier. The MI5 agent asks for his one-time colleague's help when the team are assigned to protect a high-profile witness in the trial of a Serbian war criminal. Drama, guest starring Alec Newman, with Rupert Penry-Jones

• Season 5 Episode 8: Agenda

  The team is given cause for concern when an extremist Muslim cleric, encouraging violence in the West, is apparently assassinated by a Christian zealot. This leads the MI5 agents to believe it could be the start of a new wave of religious conflicts. Rupert Penry-Jones, Peter Firth and Hermione Norris star, with Shaun Dingwall and Lennie James

• Season 5 Episode 7: Hostage Takers (Part Two)

  Part two of two. Ros is trapped inside the embassy during the siege. The terrorists demand the release of al-Qaeda prisoners in Saudi Arabia and resort to killing the hostages when the government refuses to negotiate with them - but then suspicion arises as to the militants' real identities. Drama, starring Hermione Norris, with Saskia Reeves

• Season 5 Episode 6: Hostage Takers (Part One)

  Part one of two. While Adam and Zaf hunt down an elite team of terrorists who have entered Britain, Ros is assigned to safeguard a delegation of Middle Eastern princes taking part in a secret government deal. However, things take a turn for the worse when the Saudi Trade Centre is stormed after news of the transaction is leaked. Rupert Penry-Jones and Raza Jaffrey star

• Season 5 Episode 5: The Message

  Harry suspects a cover-up when the government releases its report on the deaths of seven terror suspects killed in an alleged accidental prison fire. However, his failure to act in time leads to one of his team being framed for their murder. Drama, guest starring Tim McInnerny, with Peter Firth and Rupert Penry-Jones

• Season 5 Episode 4: World Trade

  Team members are posted undercover at the heart of the talks during the World Trade Summit for Africa, where they unearth an assassination plot which they must risk their lives to quash. However, they are faced with a moral dilemma when they realise the true motivations behind the deadly plan. High-octane drama, starring Rupert Penry-Jones, with Alex Jennings

• Season 5 Episode 3: The Cell

  Zaf risks his life on an undercover mission to infiltrate an al-Qaeda cell planning a bomb attack on the UK, in an attempt to urge a member of the organisation to switch sides. Meanwhile, Adam learns the terrorists are embarking upon a suicide mission that will put his colleagues in great danger, and attempts to reach their target as events spiral out of control. Raza Jaffrey and Rupert Penry-Jones star

• Season 5 Episode 2: Gas and Oil (Part Two)

  Part two of two. The team's attempt to prevent the car bomb plot to assassinate the Home Secretary has serious consequences for Juliet. The conspirators place pressure on the weakened Prime Minister, forcing him to pass measures that will turn Britain into a dictatorship. As Harry races to stop them, he is taken prisoner by treacherous MI6 boss Collingwood - who plans to have him killed

• Season 5 Episode 1: Gas and Oil (Part One)

  Tom Quinn and his team at MI5 look for an extremely dangerous pro-life terrorist.

• Season 5 Episode 6/7: Hostage Takers

  Ros is caught in the siege when the Saudi Embassy is stormed.

Spooks: Season 4 (2005 - 2006)

• Season 4 Episode 10: Diana

  A former spy visits Thames House - but it soon becomes clear she has more on her mind than catching up with old friends. Armed with a bomb, she holds the team hostage - demanding they produce evidence that the security services assassinated Diana, Princess of Wales. Guest starring Lindsay Duncan, with Peter Firth, Rupert Penry-Jones and Anna Chancellor

• Season 4 Episode 9: The Sting

  Harry makes an enemy of the CIA when he stops their illegal extradition of a British Muslim, leading the agency to target him - and pile pressure on Juliet to fire him. Once sacked, the MI5 agent has no choice except to go underground in an attempt to clear his name. High-octane drama, starring Peter Firth and Anna Chancellor

• Season 4 Episode 8: The Russian

  The agents find themselves forced to rely on a British traitor from the Cold War era when they infiltrate a Russian firm suspected of stealing secrets from GCHQ. Struggling to cope with recent events, Adam insists on running the operation - but it is soon clear he has taken on too much. George Baker guest stars in the high-octane drama, with Rupert Penry-Jones and Peter Firth

• Season 4 Episode 7: Syria

  Ignoring the strain she's placing on her marriage to Adam, Fiona handles security at a conference where MI5 suspect arms-dealing is taking place. At the event she encounters her Syrian ex-husband Farook - whom she believed was executed several years previously. Discovering he intends to exact his revenge, she isn't prepared to give in without a fight. High-octane drama, starring Olga Sosnovska

• Season 4 Episode 6: The Innocent

  The agents observe jailed Algerian terrorist Malik, whom they suspect of planning an attack from his cell. In a risky move, he is released so MI5 can track him to his movement's headquarters - but the team realise their suspicions about him are incorrect. Jimi Mistry and Joanna Roth guest star in the high-octane drama, with Rupert Penry-Jones and Peter Firth

• Season 4 Episode 5: The Book

  The agents are assigned to protect a journalist about to break the story of a former Cabinet minister with a shady past who was murdered by a neo-conservative group - which happens to have connections with the government. Douglas Hodge guest stars, with Rupert Penry-Jones and Olga Sosnovska

• Season 4 Episode 4: Road Trip

  When MI5 discover a notorious Islamic terrorist is planning to launch an attack in the UK, Adam and Zafar travel to Turkey in a bid to persuade him to join them instead - but despite the success of the mission, the team are uncertain whether their new recruit means exactly what he says. High-octane drama, starring Rupert Penry-Jones and Raza Jaffrey

• Season 4 Episode 3: Divided They Fall

  After the defection of a well-known MP, Adam and Fiona go undercover to infiltrate his new party - a right-wing extremist group known as The British Way - who plan to wreck the country's democracy. High-octane drama, guest starring Rupert Graves and David Threlfall, with Rupert Penry-Jones and Olga Sosnovska

• Season 4 Episode 2: The Special - Part Two

  Part two of two. Zafar and Adam race against the clock to uncover the latest bomb, while the power struggle between Juliet and Harry intensifies. As a new ultimatum is issued and Tash mysteriously disappears, the team are forced to deal with the possibility of a mole within their own organisation. Guest starring Martine McCutcheon and Anna Chancellor

• Season 4 Episode 1: The Special - Part One

  Part one of two. Danny's colleagues gather for his funeral, but the service is interrupted by news of a bomb blast in central London. The team races against time to prevent a second catastrophe, and comes under the scrutiny of a National Security co-ordinator with a grudge against Harry

Spooks: Season 3 (2005)

• Season 3 Episode 10: The Suffering of Strangers

  Danny and Fiona investigate a safe house they suspect is being used by North African terrorists. However, while planting listening devices their cover is blown and they are captured, leaving colleagues at MI5 with a difficult dilemma. The terrorists are demanding nothing less than the complete withdrawal of British forces from Iraq, or they will kill the agents. Adam's concern for his wife clouds his judgement and he agrees to negotiate, not realising he is walking into a trap

• Season 3 Episode 9: Frequently Asked Questions

  The team apprehend an infamous mercenary involved in the arms trade after he is seen visiting an abandoned Soviet weapons dump. Under questioning, he reveals that plans have been put in motion to launch a devastating missile attack on London. Drama, starring David Oyelowo

• Season 3 Episode 8: Celebrity

  A rock star and his supermodel wife, whose careers are dwindling, report the kidnapping of their baby. Adam is assigned to investigate, but soon discovers the parents are not telling him the whole truth and may even have engineered the situation to boost their flagging stardom. Andy Serkis, who played Gollum in The Lord of the Rings films, guest stars as the desperate musician, alongside Arabella Weir and Tim McInnerny

• Season 3 Episode 7: Outsiders

  The agents deal with a wave of computer crime which has seen the ingredients of painkillers tampered with, bank balances erased and traffic lights disrupted to devastating effect. Ruth believes it may be the work of an Islamic terrorist faction and enlists the aid of the National Hi-Tech Crime Unit to uncover the truth. Meanwhile, Danny comes under pressure to reveal what has happened to Zoe. Espionage drama, starring Nicola Walker

• Season 3 Episode 6: Persephone

  Zoe is put on trial for conspiracy to murder following an abortive mission in which an undercover police officer was killed by a gang of Turkish gun-runners. Espionage drama, guest starring Ian McNeice alongside Keeley Hawes and David Oyelowo

• Season 3 Episode 5: Love and Death

  Danny accuses Zoe of letting her relationship with Will interfere with her work as they pursue a rogue scientist who has created a lethal chemical weapon and plans to sell it to terrorists. He soon faces a dilemma of his own, however, when the objective of their mission changes. Keeley Hawes and David Oyelowo star

• Season 3 Episode 4: A Prayer for my Daughter

  A diplomat is killed while attending the latest round of Middle East talks, and MI5 suspect a link with a shadowy group known as the November Committee - but become involved in a race against time when it appears a pro-Palestinian British MP is next on the assassins' hit list. The case is complicated further when a link is discovered between the organisation and Harry's daughter. Guest starring Anton Lesser and Corin Redgrave

• Season 3 Episode 3: Who Guards the Guards?

  Danny and the team investigate the attempted assassination of a famous novelist, and begin to suspect he may not have been the intended target. The evidence they uncover suggests a senior member of the Government has made a deal that threatens to undermine UK security and the life of an innocent man. Guest starring Tim McInnerny

• Season 3 Episode 2: The Sleeper

  Harry activates sleeper agent Fred Roberts, who had previously been living as a renowned chemist, and uses him to infiltrate a terrorist group. However, as Fred plays his part in the elaborate sting operation, Tom begins to question the morality of MI5's actions. Meanwhile, an encounter with photographer Will North has unexpected repercussions for Zoe. Guest starring Ian McDiarmid

• Season 3 Episode 1: Project Friendly Fire

  Tom is accused of murdering the Chief of Defence staff, and the team have to find out what happened and whether he has really turned traitor. A confident new recruit from MI6 motivates them into action - but they are also subjected to a punitive government investigation. Starring Keeley Hawes, Peter Firth and Rupert Penry-Jones, with a guest appearance by Frances Tomelty

Spooks: Season 2 (2003 - 2006)

• Season 2 Episode 10: Smoke and Mirrors

  An American assassin is asked to come out of retirement to kill an Englishman, and Tom is put in an intolerable position when Christine reveals sensitive information about the clandestine operation. Against her wishes, he puts the team on the case to find the would-be culprit, but his colleagues begin to doubt his judgement and motives when the trail goes cold. Crime drama, starring Matthew Macfadyen and Megan Dodds

• Season 2 Episode 9: The Seventh Division

  The team sets out to halt the progress of the Chala Cartel, a massive drug-trafficking system running from Bournemouth to Bali, after the deaths of eight Customs and Excise officers who were monitoring the criminals' activity. But when a leading British company is found to have links to the Colombians, the case takes a sinister turn as the possibility of corruption rears its ugly head. Matthew Macfadyen, Nicola Walker and Megan Dodds star

• Season 2 Episode 8: Military Strikes

  The re-emergence of strike action brings a winter of discontent as firefighters, nurses, teachers, air traffic controllers, council workers and rail employees all clash with the Government. MI5 closely monitors the situation, aware of the inherent dangers - but when it discovers a section of the British Army is planning a walk-out of its own, it faces a battle to ensure the stability and security of the country. Reece Dinsdale guest stars, with Matthew Macfadyen and Keeley Hawes

• Season 2 Episode 7: Cleanskin

  The French Intelligence Service asks for MI5's help in catching an arms expert suspected of trying to sell Eurofighter technology to the highest bidder. It seems a 14-year-old thief holds the key to acquiring the information, but the operation slides into disarray when the government orders the British team to acquire it for themselves, turning an exercise in international co-operation into a web of lies and mistrust. Matthew Macfadyen, Keeley Hawes and David Oyelowo star

• Season 2 Episode 6: President's Visit

  The American president makes an unscheduled trip to Britain, forcing MI5 to work with the CIA to ensure his safety throughout the visit. Tom and Christine are thrown together, and it soon appears there's more to their relationship than just work - but with each new threat turning the operation into a power struggle between the rival organisations, they need to keep their minds firmly on the job

• Season 2 Episode 5: I Spy Apocalypse

  An apparently routine exercise takes a terrifying turn when the power fails, communication channels go dead and Harry shows signs of illness. As desperate members of the public start trying to break into Thames House, the MI5 operatives are forced to face the horrible possibility that a crude nuclear device has actually been detonated in London. Annabelle Apsion and Jo Joyner guest star

• Season 2 Episode 4: Blood and Money

  MI5 are called in when a family-owned bank is robbed to the tune of $1billion. As the team races to find the missing money and the culprit, undercover agent Danny discovers the firm has many dark secrets, and that someone in the highest echelons of the British Government is making sure they do not get out. Guest starring Robert Hardy, Oliver Ford Davies, Julie Cox and Sophie Okonedo

• Season 2 Episode 3: Hackers

  Hacking into MI-5's central computer leads to the loss of important files and the deaths of agents in the field.

• Season 2 Episode 2: Nest of Angels

  Reports of extremist activity at a Birmingham mosque alert the team to the existence of suicide bomber training. When one MI5 agent is exposed as an infiltrator and tortured, help arrives in the form of an Algerian spy. But when a terrorist outrage is planned, it becomes a race against time to identify the target before his cover is also blown. Guest starring Alexander Siddig, best known as Dr Bashir in Star Trek: Deep Space Nine, with Matthew Macfadyen and Keeley Hawes

• Season 2 Episode 1: Legitimate Targets

  The Secretary of State for Northern Ireland and his two daughters are killed by a car bomb and a British Army base is attacked. Amid a national outcry, an Irish terrorist group deny responsibility for the second bombing and a Bosnian war criminal is spotted entering the country, prompting the team to suspect a revenge campaign is under way. Matthew Macfadyen, Natasha Little and Keeley Hawes star

Spooks: Season 1 (2002 - 2006)

• Season 1 Episode 6: The Lesser of Two Evils

  Irish paramilitary leader Patrick McCann promises to give Tom information on a planned attack by Middle Eastern terrorists on a British nuclear power station - but not without a catch. In return for the tip-off, MI5 must allow McCann's group to go unwatched for 30 hours. Lorcan Cranitch guest stars, with Matthew Macfadyen, Peter Firth and Esther Hall

• Season 1 Episode 5: The Rose Bed Memoirs

  Tom and his team set out to retrieve disgraced former MP Hampton Wilder's memoirs, which contain information capable of provoking a scandal big enough to bring down the government. Unfortunately, details are leaked to the press, leaving MI5 to question who is really pulling the strings. With guest stars Tim Pigott-Smith, Nicholas Farrell and David Calder

• Season 1 Episode 4: Traitor's Gate

  As President Bush prepares to visit the UK, anti-capitalist demonstrations grow in intensity, prompting MI5 agent Peter Salter to go on a joint operation with MI6 to infiltrate an anarchist group - but questions soon arise over whose side he is really on. Anthony Head and Hugh Laurie guest star, alongside Matthew Macfadyen

• Season 1 Episode 3: One Last Dance

  While undercover on a lunch date and routine check at the State Consulate of Turkey, Zoe finds herself in the middle of a siege led by the Kurdish Liberation Army. However, the attack turns out to be a decoy which masks a much bigger operation led by a former MI5 agent. Drama, starring Matthew Macfadyen and Keeley Hawes

• Season 1 Episode 2: Looking After Our Own

  Tom and Helen pose as a married couple in an attempt to close in on a far-right racist - but the target realises someone is on to him and the duo find themselves forced to decide between the integrity of the assignment and their own safety. Gritty drama, starring Matthew Macfadyen and Lisa Faulkner

• Season 1 Episode 1: Thou Shalt Not Kill

  Quinn and his MI5 team search for a consignment of bombs lost between Ireland and the UK - and the subsequent death of a family planning expert makes them fear the culprit is dangerously unbalanced pro-life terrorist Mary Kane. Further investigations reveal she may have plans to detonate as many as 20 of the explosives as part of her campaign. Drama, starring Lisa Eichhorn, Matthew Macfadyen and Keeley Hawes

Spooks: Other Episodes

• Secrets and Lies

  With rumblings that Islamic terrorists are active again, the team is pressured to prevent attacks.

• The Message

  Ruth sees a man kill himself, setting off a chain of events.