When Eliza receives a bomb in the mail, she teams up with Duke, Moses and her old enemy Patrick Nash to find out who is behind the delivery.

Eliza is on the verge of earning life-changing money when she offers to help the heir to an unclaimed fortune. It’s a race against time to claim the money and Eliza will need Duke’s help, but a revelation about his personal life makes working together impossible.

Detective Fitzroy sees one of his colleagues plant evidence on a suspect. With Duke away, Fitzroy turns to Eliza for help.

Eliza is on the trail of a notorious conman and tracks him down to a hotel in a remote part of France. She believes she has finally caught Scotland Yard’s most wanted man, but she’s not the only hotel guest who wants to claim the reward.

Eliza bumps into Arabella Herbert, the girl who made her life a misery growing up. But as an adult, Arabella seems kind and considerate and everybody loves her. So when Eliza suspects she may be a criminal, no one wants to hear it, least of all Duke.

Based on the novel by the English writer Daphne Du Maurier, Jamaica Inn is a gripping mystery that tells the story of Mary Yellan, a woman who is forced to move into the ominous Jamaica Inn with her aunt and uncle. Mary must uncover the secrets of a local group of smugglers while also managing her growing attraction to the mysterious Jem Merlyn.

A famous magician does the ultimate disappearing act and vanishes into thin air. All of London is talking about the mystery and Eliza is hired by a newspaper to investigate, despite the fact that Duke is already on the case.

With Christmas approaching, the midwives move to their maternity clinic and are delighted when their first patient is a familiar face. Life in Poplar returns to normal after the tragic train crash, and everyone unites for a festive talent show.

James and Helen question their future together as Christmas approaches, while things look grave for one of Darrowby’s most beloved animals.

Tristan works out how to make clients happy but then receives some bad news. James and Helen have a heart-to-heart.