1796: To defend Cornwall and those he loves from an empowered George (Jack Farthing), Ross (Aidan Turner) must learn to play the political game on a journey that takes him to the nation’s capital. While Demelza (Eleanor Tomlinson) manages the Poldark’s affairs at home, Elizabeth (Heida Reed) moves to further secure her marriage. Drake (Harry Richardson) struggles in resigning Morwenna (Ellise Chappell) to life with Osborne (Christian Brassington) and the Enyses (Luke Norris & Gabriella Wilde) are tested as never before.