In Victorian England, the Great Detective, Madam Vastra, her resourceful spouse, Jenny Flint, and their loyal valet. Strax, solve conundrums, fight injustice and capture criminals - but an enemy has taken up residence undetected.

Vastra believes trespassers are close at hand, and seeks out clues in some of the Gang's previous cases....

2.1 Anne of a Thousand Light Years by James Kettle

The course of true love never does run smooth - especially when it involves a high-born young lady, a humble farmhand and extra-terrestrial chameleons on the lookout for breeding stock.

Will Lady Anne Warminster marry the man of her dreams? Will the amorphous Glossophants secure their chosen spawn bride? Will Jenny every finish reading a novel by Anthony Trollope?

In the heart of the English countryside, the Gang tackle an assignment involving romance, skulduggery and horse manure.

2.2 Pater Noster by Gary Russell

Something is hiding in the sewers of London, picking off the poor and lost souls who live down there....

Madam Vastra opens a case file that takes her back to her early days and a Life Task that must be finally fulfilled. A case where she and her friends face death from an enemy capable of shredding matter into echoing screams....

2.3 The Gentlemen Thieves by Lauren Mooney and Stewart Pringle

Vastra reviews the case of a 'one-man crime wave' - break-ins and burglaries, committed by the same handsome and daring thief, even when they were committed at exactly the same time.

Unravelling the secrets of these doppelganger ne-er-do-wells, the Gang touch on the fringe of a bigger conspiracy. But as Vastra recalls the past, the dangers of the present and closing in.

CAST: Neve McIntosh (Madam Vastra), Dan Starkey (Strax), Catrin Stewart (Jenny Flint), Tom Baker (The Doctor), Casslan Bilton (Rackham), Karen Archer (Countless of Warminster), Gareth Armstrong (Lord Ives), Nicholas Boulton (Mr Bryans / Weave Pilot 27), Anna Crichlow (Lady Anne / Empress), Helen Goldwyn (Marjorie), Yasmin Mwanza (Florrie), Jamie Newall (Pater Noster), Leighton Pugh (Officer Hornung), Richard Reed (Albert / Glossophant). Other parts played by members of the cast.