Ross celebrates the opening of Wheal Leisure as rumours spread of a scandalous relationship between him and Demelza. Francis and Elizabeth celebrate the birth of their new son. Ross must fight to save his friend Jim, sparring in court with Reverend Halse.

Demelza gives birth and resolves to help Verity reconcile with Captain Blamey. Ross welcomes old friend Dr Dwight Enys to Cornwall, and Francis's persistent gambling threatens the security of all he holds dear.