Hanson's presence in Cornwall raises suspicions, and as Demelza wrestles with how best to equip the community to look after itself, Morwenna lends herself to the cause and finds new hope. Geoffrey Charles and Cecily's relationship continues to blossom. Meanwhile her father Ralph pursues an arrangement with George, but George's sanity continues to deteriorate and Cary struggles under mounting responsibilities.

George's cabal moves to ruin the Poldarks, and Morwenna wrestles with a heavy decision.