Grain prices rise, leaving the poor struggling to support their families. Ross makes a desperate gamble to help them, which draws the attention of the prime minister. However, Falmouth persuades him to compromise his principles to achieve his goals. Demelza continues her plot to bring Drake and Rosina together, but he is far more interested in a future with Morwenna. Caroline continues to repress her grief, and Arthur is driven into a murderous rage when he learns the truth about Rowella's affair.