Episode 1 “Danger“ Episode 2 “Discoveries“ Episode 3 “Dogs“ Episode 4 “Dictionaries“ Episode 5 “Death“ (Halloween Special) Episode 6 “Drinks“ Episode 7 “Differences“ Episode 8 “Descendants“ (Children in Need Special) Episode 9 “Doves“ Episode 10 “Divination“ Episode 11 “Denial & Deprivation“ Episode 12 “Domesticity“ Episode 13 “December“ (Christmas Special)