One Way or Another (audio story)

 was the first story in the audio anthology Masters of Time, produced by Big Finish Productions. It was written by John Dorney and featured Jemma Redgrave as Kate Stewart, Ingrid Oliver as Petronella Osgood, James Joyce as Josh Carter, Chris Lew Kum Hoi as Jimmy Tan, Christopher Naylor as Harry Sullivan and Eleanor Crooks as Naomi Cross.

Publisher's summary
Kate leads an attack on a Vulpreen prison camp, unaware that UNIT friends are being held there. As paths converge, Kate and Osgood have different perspectives on the attack, and specific dangers to overcome.

Plot
Lord Varliss is in control of Earth after leaving swathes of it in frozen time and holding most of UNIT in prison camps, including Josh and Jimmy, but Kate is leading a resistance movement and the captive Osgood refuses to give him any information on getting into the Black Archive. Kate, Harry, Naomi and postman Bert infiltrate a Vulpreen base where Super Arches which allow for transportation without a receiving arch are being made and plant a bomb.

Harry and Naomi meet up with Osgood and they liberate Josh and Jimmy and the other prisoners before going to remove the frozen time that Varliss has put in place to trap Kate. Once they are successful, Jimmy is recaptured and Josh gets away from the base with Kate, whom he informs of Varliss's alliance with Missy. Osgood freezes Harry and Naomi to protect them from the bomb and Varliss takes her and Jimmy with him to the Tower of London using the Super Arch's field, allowing Kate one minor victory.

The bomb detonates and destroys the base, after which Kate, initially believing that her friends have been killed, learns that Osgood and Jimmy have survived and goes to rescue them.

Cast

 * Kate Stewart - Jemma Redgrave
 * Osgood - Ingrid Oliver
 * Harry Sullivan - Christopher Naylor
 * Naomi Cross - Eleanor Crooks
 * Varliss - Alisdair Simpson
 * Bert Hockley / Jesden / Vulpreen Commander - Glen McCready
 * Captain Josh Carter - James Joyce
 * Lieutenant Jimmy Tan - Chris Lew Kum Hoi

Worldbuilding

 * Bert Hockley is a postman.
 * Kate takes out the base's power with an electromagnetic pulse.
 * Missy has helped the Vulpreen create Super Arches.
 * Varliss knows about the Black Archive.
 * Time glitches have been happening across the planet.

Continuity

 * The Vulpreen were previously allied with the Eleven. (AUDIO: The Enemy Beyond, etc.)
 * Josh informs Kate that the Vulpreen are now allied with Missy. (AUDIO: Time of the Vulpreen)
 * Osgood mentions the asteroid ship. (AUDIO: The Vulpreen Encounter)