Elizabeth tells George that she is carrying his child and George continues to mark his territory by erecting fences around Trenwith, denying commoners passage across his property. Dwight learns of Caroline's new engagement and enlists in the navy. Ross decides he must mend the rift between Caroline and Dwight before it is too late. Ross is called to Trenwith by George, suspicious that the purchase of Geoffrey Charles' share in the mine was fraudulent. Pascoe reveals to Ross that George will seek to bankrupt him through court proceedings. Demelza is assaulted for trespassing on Warleggan land provoking the villagers to march on Trenwith with vengeance in mind - will Ross be able to disband the mob? Elizabeth, meanwhile, is forced to face the possibility that her pregnancy might not, in fact, be the result of her union with George.
Aired: 6 Nov 2016