It is 1810 and Britain is at war with France. Ross Poldark, MP, is working in London and the family feud between the Poldarks and the Warleggans is still raging. In Cornwall, Demelza is alone with two children, Jeremy is struggling to keep the mine alive and Clowance is torn between the love of a mysterious stranger and an aristocratic young man. The stranger changes the lives of the Poldarks pulling them into a frightening world of smuggling and deception. This new, feature length story continues the story from the classic 1970s period drama, paving the way for a new series, with a new cast and high production values.