Deeply hurt at the refusal of his marriage proposal, Thornton and Margaret's relationship becomes more tense and difficult. Just in time, Frederick comes home to visit his dying mother. Thornton mistakes him for Margaret's lover.

Cast: Richard Armitage, Daniela Denby-Ashe, William Houston, Brian Protheroe, Anna Maxwell Martin, Sinéad Cusack, Lesley Manville, Tim Pigott-Smith, Brendan Coyle, Will Tacey, Lucy Brown, Kay Lyon, Pauline Quirke, Jane Booker, Travis Oliver