This episode includes in the story line the Great Fire of Toronto, which occurred on 19 April 1904. Archive footage and still pictures of the fire and its aftermath are blended into the narrative.
Samantha Bond is the third Downton Abbey (2010) alumnus to appear as a guest star. Thomas Howes as Winston Churchill in Winston's Lost Night (2013), Brendan Coyle as Rankin in A Merry Murdoch Christmas (2015), and Sophie McShera as Ann Ryand in Murdoch Mystery Mansion (2018).