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![Episode Guide](/staticarchive/56f22e7c920002a0be806d228c4bc16779ded2c2.jpg) |
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![Series 4: Episode 10](/staticarchive/f3a80bc944a28aa7200eca01a4861226ce68eaff.jpg) |
[ Episode 10
] Thursday 10th November, 2005
Ruth is asked to procure evidence that Harry was responsible for the assassination of Princess Diana.
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![Series 4: Episode 9](/staticarchive/038c66600dea011e1c7f6ed05af2a28c490342bf.jpg) |
[ Episode 9
] Thursday 3rd November, 2005
When Harry takes a stand against the CIA, he gets the sack.
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![Series 4: Episode 8](/staticarchive/b3fdef594e10dc4dae856c58c11b5fdc822834d7.jpg) |
[ Episode 8
] Thursday 27th October, 2005
The son of a dead Russian spy wants to buy the NHS from the British Government, MI5 try to find out his motives.
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![Series 4: Episode 7](/staticarchive/923e0f26408e54fbafacbaef9b89057a60d23add.jpg) |
[ Episode 7
] Thursday 20th October, 2005
Fiona plays a dangerous game when she offers to go undercover and liaise with a Syrian diplomat.
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![Series 4: Episode 6](/staticarchive/428869084bf66215b4f55455c58d7d8896552de3.jpg) |
[ Episode 6
] Thursday 13th October, 2005
A terrorist is co-ordinating a bomb attack from the safety of his high-security prison cell, so Harry decides to release him.
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![Series 4: Episode 5](/staticarchive/394a95c381c060bf5861fa14e726156d9928dbdd.jpg) |
[ Episode 5
] Thursday 6th October, 2005
Harry discovers an old MI5 officer has died in suspicious circumstances.
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![Series 4: Episode 4](/staticarchive/cea667812c387ab12ffce3307e0a7e0b396858cd.jpg) |
[ Episode 4
] Thursday 29th September, 2005
Adam and Zaf infiltrate a truck of illegal immigrants in an attempt to prevent a terrorist attacking the UK.
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![Series 4: Episode 3](/staticarchive/6b4ae3db6618cbfb518533d1a6f93f2b102490fe.jpg) |
[ Episode 3
] Thursday 22nd September, 2005
Racism is growing in Britain and MI5 realise democracy is being threatened when a high-profile MP joins a far-right party.
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| ![Series 4: Episode 2](/staticarchive/0dab114c904bd165fed1cab0272db9f9da56ebb4.jpg) |
[ Episode 2
] Tuesday 13th September, 2005
2/2: Adam and Tash risk their lives in an attempt to save Zaf as the rest of the team race against time to thwart the bombers.
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| ![Series 4: Episode 1](/staticarchive/9958e7aa845d155fe317113d8dc199aa898ace4b.jpg) |
[ Episode 1
] Monday 12th September, 2005
1/2: A bomb explodes in a London street market, the team have to race against time to stop hundreds of people being killed.
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