'The Fifth Citadel' (1 Part) by James Goss

The British government has created the Counter-Measures group, a specialist team that investigates strange phenomena and dangerous technology.

People are falling ill near Holborn and displaying a sickness with all the hallmarks of radiation poisoning. While Gilmore and Allison look into a graveyard, Sir Toby and Rachel venture underground to meet an old friend with a desperate scheme...

Simon Williams (Group Captain Ian 'Chunky' Gilmore), Pamela Salem (Professor Rachel Jensen), Karen Gledhill (Allison Williams), Hugh Ross (Sir Toby Kinsella), Lucy Fleming (Lady Waverly), Blake Ritson (Captain Astor), Gemma Whelan (Emma Waverly), Celia Imrie (Doctor Elizabeth Bradley), Tom Price (Father Ellard), Philip Pope (Templeton)

Directed by Ken Bentley

Release Date:
July 2013

Notes:

*Featuring Group Captain Ian Gilmore, Professor Rachel Jensen and Allison Williams, and introducing Sir Toby Kinsella

*A Big Finish Audio Production