The Poldark family finds itself challenged on all fronts and threatened as never before.
An election threatens Truro's status quo. As his past actions confront him, Ross senses a rival for Demelza's affection.
George pursues a vacant seat in Parliament as Agatha plans for her hundredth birthday, and Ross is given a proposition. Meanwhile, there is a new arrival at the Whitworth vicarage.
Drake finds himself in the Warleggans' firing line as George moves to secure his connection to the nobility, and Ross provides some local aid.