The Unzal Incursion (audio story)

The Unzal Incursion was the first story in the audio anthology The Third Doctor Adventures: Volume Seven, produced by Big Finish Productions. It was written by Mark Wright and featured Tim Treloar as the Third Doctor, Daisy Ashford as Liz Shaw and Jon Culshaw as Brigadier Lethbridge-Stewart.

Publisher's summary
Under the supervision of the Doctor, the Brigadier and Dr Liz Shaw, UNIT are getting ready to activate Hotspur: their new, advanced early warning system.

But something goes wrong. Can it be that UNIT has been betrayed from within? Suddenly bases are falling across the globe, and only the Doctor and his friends are able to escape.

Not knowing how far the conspiracy goes, the Doctor, Liz and the Brigadier become fugitives. Their investigations lead them to the Fulcrum military training facility. And something beyond the Earth.

Plot
to be added

Cast

 * The Doctor - Tim Treloar
 * Liz Shaw - Daisy Ashford
 * Brigadier Lethbridge-Stewart - Jon Culshaw
 * Sergeant Nicola 'Nicki' Attah - Misha Malcolm
 * Private Robbins - Sam Benjamin
 * Cherilyn Dankworth - Clare Corbett
 * Harper - Avita Jay
 * Unzal / Unzal 2 - Gary Martin

Crew

 * Cover Art - Tom Webster
 * Music & Director - Nicholas Briggs
 * Executive Producers - Nicholas Briggs and Jason Haigh-Ellery
 * Producer - David Richardson
 * Script Editor - John Dorney
 * Sound Design - Benji Clifford
 * Writer - Mark Wright
 * Creative Director for the Haisman Estate - Andy Frankham-Allen

Worldbuilding
to be added

Continuity

 * Liz mentions how she was sceptical about the existence of aliens when she first joined UNIT. (TV: Spearhead from Space)
 * The Brigadier pilots the C-130 Hercules which the Doctor remembers from the Cyberman invasion. (TV: The Invasion)
 * John Benton is mentioned as having been recently promoted to sergeant. (TV: The Ambassadors of Death)
 * The guests at reception for the opening of Hotspur include Sir John Sudbury and Lord Rowlands. (TV: Time-Flight et al, Terror of the Autons)
 * The security doors at UNIT HQ are reinforced using Dynastreem. (TV: Robot)
 * The Doctor believes that the Unzal Incursion required outside assistance from someone capable of hypnosis and interstellar travel. He calls the incident a "stress test" designed to gauge the effectiveness of UNIT and Earth's defenses against extraterrestrial invasion, with further waves to come. While he remains unsure of the identity of the party involved, elsewhere Dankworth is drawn into a trance, repeatedly writing "You will obey me" in her journal. (TV: Terror of the Autons, The Mind of Evil, The Claws of Axos, et al.)
 * The Brigadier asks for Corporal Bell. (TV: The Mind of Evil, The Claws of Axos)