"Poldark" is a historical drama set in 18th-century Cornwall, following the life of Ross Poldark, a British Army officer who returns home after fighting in the American Revolutionary War. He discovers that his father has died, his estate is in ruins, and his childhood sweetheart, Elizabeth, is engaged to another man. The series explores themes of love, betrayal, and social class as Ross strives to rebuild his life and the family mine. Throughout the show, Ross faces numerous challenges, including conflicts with the wealthy George Warleggan, who seeks to undermine him. The story also highlights the struggles of the working class, showcasing the harsh realities of mining life and the impact of industrialization on society.