The hunt is on for Ian Bett as a picture of Anton Bergen begins to emerge. Are Calder and Tosh dealing with the revenge of a jealous ex-husband?

Cast: Mairi Morrison, Stella Watson, Helen Mackay, Sarah MacGillivray, Alison O'Donnell, Anne Kidd, Ashley Jensen, Leeroy Boone, Steven Robertson, Tara Lee, Jimmy Yuill, Andrew John Tait, Lesley Hart, Jacob Ferguson, Vincent Regan, Macleod Stephen, Ross Anderson, Lewis Howden