In a separate video from the usual behind the scenes video provided after the episode, Sony interviewed executive producers and writers Toni Graphia and Matthew B. Roberts about the season three finale. In this video, they describe the prologue at the beginning and how it reappears later in the episode. They also discuss the hurricane and the part of the book that was taken out that takes place in this sequence.
Not ready for the #Droughtlander? Go inside the #Outlander Season 3 finale with E.P.s @themattbroberts & @outlanderwriter. pic.twitter.com/qHB0E9PcnT
— Sony (@Sony) December 11, 2017
Source: Sony