One Rule


4.50 out of 5
(2 reviews)
Published on: December 7, 2015


It’s been three weeks since the Mayor of Cardiff was killed by a shop dummy and the fight is on to see who will replace him.Yvonne Hartman is visiting the city to retrieve an invaluable alien device. She’s in charge of Torchwood One, she’s saving the British Empire and she doesn’t care about local politics. But she is going to find herself caught up in that fight. There’s a bloodthirsty alien stalking the streets and there’s a special offer on at the all-you-can-eat Chinese buffet.

It’s the 26th of March 2005 and it’s the day that everything changes.

Additional information


Joseph Lidster


Yvonne Hartman

Content warnings



Barnaby Edwards

Episode timeline





Big Finish – Monthly range


No major relationship

Series timeline

Before series 1


Audio drama

Related Fanworks


2 reviews for One Rule

  1. Estelle

    Yvonne Hartman is such a fascinating character. And before the release of the Torchwood One box-sets, this is the first glimpse we have of what an amazing work Big Finish is going to do with this character.

    The plot is straightforward but enjoyable and all the performances are great. As always, Tracy-Ann Oberman magnificently portrays Yvonne as someone that can be ruthless when duty is concerned yet very much human with a sense of humour and compassion.

  2. Jay

    Yvonne Hartman is back? Yes you heard that right! Set before her demise, this story has her heading across to Cardiff from her comfortable office in Torchwood One. This story really shows how brutal and ruthless Yvonne can be, one moment sticks in my mind as clear as day since I first heard this audio!

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