Season 4

01 Double Exposure Episode 114th February 1974 Craven and Haggerty are assigned to investigate if a photographer is a threat to national security. 02 Catherine the Great Episode 221st February 1974 The team are on the trail of Rehfuss - a deadly assassin who has managed to get into the country. 03 Jailbait Episode 328th February 1974 Craven and Haggerty are hot on the trail of a traitor has broken out from prison. 04 Stand and Deliver Episode 47th March 1974 An experimental weapon is stolen from a military research facility, but the thieves are unaware the weapon is unstable. 05 Something about a Soldier Episode 514th March 1974 Tensions run high as Craven and Haggerty investigate two army officers. 06 Rendezvous Episode 621st March 1974 Craven provides security for the debriefing of a captured KGB agent. 07 Sounds Sinister Episode 728th March 1974 Craven and Haggerty investigate the broadcasting of compromising information about public figures on a pirate radio station. 08 Entente Cordiale Episode 84th April 1974 Craven is appalled to find himself implicated in his ex-wife's terrorist activities. 09 Date of Birth Episode 911th April 1974 Craven must unravel the connection between a recently-killed spy and an au pair. 10 Intercept Episode 1018th April 1974 Craven has to investigate a morally dubious but strategically important foreign VIP who has been robbed of a fortune in diamonds. 11 Alien Episode 1125th April 1974 A German student revolutionary has been allowed into Britain under the strict condition that he does nothing political. Craven and Haggerty are made to ensure that he sticks to the terms of his deal. 12 Diversion Episode 122nd May 1974 Is Strand's erratic behaviour a result of the pressure he is under or is he playing a much more dangerous game? 13 Downwind of Angels Episode 139th May 1974 Craven and Haggerty are working against the clock to find a gunman stalking the London streets.