Forgery, murder, and false accusation strain Eliza’s forensic skills as she gets to the bottom of her father’s death.

The Duke hires Eliza to spy on suffragettes. Going beyond her instructions, she gets involved in Britain’s biggest plot since Guy Fawkes.

A post-mortem portrait photographer gets messages from beyond the grave. Eliza’s investigation takes her into the spirit world.

Searching for the secret to her father’s fate, Eliza goes to an abandoned prison. Eliza and the Duke stumble on a criminal enterprise.

Father Brown’s divine inspiration is called upon when Kembleford comes under threat of an alien invasion.

Red Troop is called to a pharmaceutical laboratory after three Chechens break in to an area where scientists are working on a vaccine for a deadly form of anthrax. The…