As the Poldarks look to rebuild their marriage and the Enyses to increase their family, Ross watches Cornwall suffer under the power of Truro's MP, George Warleggan, whose authority threatens all he hold dear. Prime Minister Pitt calls an election, and Hugh is set to rival George in the upcoming election. A corn riot erupts in Truro, and Zacky’s son, Jago, leads the charge. Demelza's infidelity leaves her torn between her husband and a lovesick Hugh.
Elenco: Aidan Turner , Eleanor Tomlinson , Heida Reed , Ruby Bentall , Jack Farthing , Beatie Edney , Kyle Soller , Phil Davis , Hugh Skinner , Gabriella Wilde , Henry Garrett , Luke Norris , Ellise Chappell .