Series 1 (2014) The first series, consisting of five episodes, aired from 12 February to 12 March 2014 and was subsequently released on DVD on 1 September 2014.
Series 2 (2014) The second series aired from 20 August to 28 August 2014. It consists of two 2-part stories, each originally aired on consecutive days in the same week.
Series 3 (2015) The third series, consisting of four episodes, aired from 13 January to 21 January 2015.
Series 4 (2015) The fourth series, consisting of four episodes, aired from 25 November to 16 December 2015.
Series 5 (2016) The fifth and final series, consisting of six episodes, aired from 3 August 2016 to 31 August 2016. Main cast member
Fay Ripley was unable to reprise her role as DI Martha Bellamy due to her filming commitments for the new series of
Cold Feet. Because of this, her character, Bellamy, is
found dead in the first episode of the series, having been fatally shot. Three new cast members were introduced to the main cast with the initial premise of investigating her murder:
Lenora Crichlow as DS Alisha Brooks,
James Murray as DCI Daniel Drummond, and
Perry Fitzpatrick as TDC Gary Roscoe. Unlike prior seasons, all six episodes focus on an ongoing story arc entitled
The Enemy Within. == Dutch and German remakes ==