All 18 episodes from the fourth series of the classic 1970s crime drama. Bodie (Lewis Collins) and Doyle (Martin Shaw) are two elite officers in the secretive CI5 service, a unit staffed by expert policemen, soldiers and special forces under the command of the formidable Cowley (Gordon Jackson). In this series, the pair investigate the case of an arms factory worker passing guns to a group of East Germans, respond to a tip-off about a planned attack on a diplomat and Bodie is haunted by the leader of a motorcycle gang. The episodes are: 'The Gun', 'Wild Justice', 'Black Out', 'It's Only a Beautiful Picture.', 'Blood Sports', 'Hijack', 'You'll Be Alright', 'Kickback', 'Discovered in a Graveyard', 'Foxhole On the Roof', 'The Ojuka Situation', 'Operation Susie', 'The Untouchables', 'Cry Wolf', 'A Man Called Quinn', 'Lawson's Last Stand', 'No Stone' and 'Spy Probe'.