The upcoming penultimate installment, which will be the show's first in the 2025 TV schedule, has a big nod to Diana Gabaldon's source material that's clear even without seeing the episode yet.

The indefatigable Gabaldon, who has made the British 18th century her own, offers a trio of novellas about Lord John Grey, whose minor role in the Outlander novels (concerning Jacobite Jamie ...