The season’s core theme is . With the Duke gone, Inspector Frank Jenkins (Andrew Gower) steps up as the primary Scotland Yard contact. Unlike the Duke, who often swung between protectiveness and admiration, Frank is a wildcard—sometimes an ally, sometimes a jealous adversary. Their dynamic injects fresh tension into the procedural elements of the show.
. Before leaving, he confesses his love for Eliza, but they remain in an "indecisive holding pattern". Professional Growth Miss Scarlet and the Duke - Season 4
Victorian London, roughly 12 years after the events shown in the flashback episode "Origins". Central Arc: Eliza takes over leadership at Nash & Sons Title: A New Dawn in London: The Evolution