Callan (TV series) is run by Colonel Hunter. ("Hunter" is a pseudonym for the current Section Chief, like the C of SIS.) The Section removes those who pose a danger to the "innocent" by persuasion, blackmail, extortion or death. David Callan had been the Section's top operator but he had become too curious about his targets and the rationale for their removal. The Section considered him vulnerable, volatile and dangerous and had laid him off to a dead-end book-keeping job for an ungrateful employer. ABC then commissioned a series of six episodes in 1967. In the first episode Callan rejoins the section in
Callan (TV series) less satisfactory than the preceding series, it was a chance for viewers to see the main characters of Callan and Lonely one more time. The Section used a series of colour-coded files to indicate targets of different priorities (with much relevance for the title of the novel "Red File for Callan"); The original TV play was screened in 1967, followed by a first series of six episodes, a second series of fifteen episodes, a third series of nine episodes and a fourth series of thirteen episodes. Callan has been fired from an anonymous government agency known as "The Section" which