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) – The Movie" on Region 0 PAL in 2001. The DVD also includes an interview with Woodward. Network DVD released "Callan – The Monochrome Years" on 22 February 2010. This four DVD set includes the remaining 2 episodes (out of 6) from the first series and 9 episodes (out of 15) from the second series, plus the Armchair Theatre pilot play 'A Magnum For Schnieder'. Network also released "Callan – The Colour Years" in 2010. "Callan – Wet Job" was released by Network in 2011. Network were to release the complete series containing all existing episodes, "The Definitive Collection" the