Returning home from grim experiences in the American Revolutionary War, Ross Poldark is reunited with his beloved Cornwall and family. But the joyful homecoming he had anticipated turns sour; his father is dead, his estate derelict, and the girl he loves has become engaged to his cousin. However, his sympathy for the destitute miners and farmers of the district leads him to rescue a half-starved urchin girl from a fairground brawl and take her home - an act which will change the entire course of his life . . .