Reporters gather at the surgery to hear that the outbreak of smallpox in Trefelin is finally under control. But Prem is not convinced that they have managed to locate the real source of the disease, and so the village is still not safe. Reverend Todd struggles to maintain his authority, not least over his wayward daughter Verity, who he has locked away from prying eyes. When her guilt-stricken lover confides in Prem, he begins a frantic search for Verity. Local copper Emlyn makes the most important declaration of his life, and Megan has to make a difficult decision.