12 - 1Murdoch Mystery Mansion Sep. 24, 2018
12 - 2Operation: Murder Oct. 01, 2018
12 - 3My Big Fat Mimico Wedding Oct. 08, 2018
12 - 4Murdoch Without Borders Oct. 15, 2018
12 - 5The Spy Who Loved Murdoch Oct. 22, 2018
12 - 6Sir. Sir? Sir!!! Oct. 29, 2018
12 - 7Brother's Keeper Nov. 05, 2018
12 - 8Drowning in Money Nov. 12, 2018
12 - 9Secrets and Lies Nov. 26, 2018
12 - 10Pirates of the Great Lakes Jan. 07, 2019
12 - 11Annabella Cinderella Jan. 14, 2019
12 - 12Six of the Best Jan. 21, 2019
12 - 13Murdoch and the Undetectable Man Jan. 28, 2019
12 - 14Sins of the Father Feb. 04, 2019
12 - 15One Minute to Murder Feb. 11, 2019
12 - 16Manual for Murder Feb. 18, 2019
12 - 17Darkness Before the Dawn (1) Feb. 25, 2019
12 - 18Darkness Before the Dawn (2) Mar. 04, 2019