Father Brown finds himself trapped with a murderer during a dark, stormy night. A civilized fundraiser at a finishing school puts Mrs McCarthy in the path of a rogue bullet. And a daring train robbery sees Lady Felicia and Mrs McCarthy carried off in the dead of night. Can Father Brown find them before it's too late?
Faced with the prospect of travelling in second class Lady Felicia is delighted to run into opera legend Dame Bianca Norman who invites her and Mrs McCarthy away from the riff-raff into her private pullman carriage.
A new musical director for the bell-ringers of St. Mary's leads to discord, disharmony and the blood-curdling sound of murder. Jamie Cheeseman arrives from London ready to modernize the musical offerings of St Mary's.
Father Brown accidentally attends a séance at the house of Professor Robert Wiseman who is showcasing the power of a magical artifact - a bone whistle - which is on sale to the highest bidder.
Much to the disapproval of Mrs McCarthy, Father Brown attempts to support newly-single mother Nell Winford - but is unable to find her anywhere to stay.
The unexplained death of an unidentified man in St Mary's graveyard calls for investigation, but both Father Brown and Inspector Mallory have disappeared without a trace.
Tensions rise to deadly levels when a performance troupe of anarchists arrive in Kembleford. An anarchist troupe are performing at Clegg Farm intent on starting a revolution. Mrs McCarthy is not impressed, but Bunty is inspired.
The Kembleford Ramblers' annual outing takes a tragic turn when the local Lord is found strangled. In the name of community togetherness Inspector Mallory and Sergeant Goodfellow are joining some local ramblers.
When Lady Felicia's home comes under threat, Father Brown is forced to seek help from an unlikely ally. Lady Felicia is back to raise funds following a dreadful mining accident and is reluctantly selling a beloved necklace.
