Big Finish Productions’ epic audio drama series Dark Gallifrey returns in 2025 with a brand-new three-part adventure. This time, the spotlight is on the Queen of Evil herself, Missy (Michelle Gomez). 

A steampunk-themed world in a pocket dimension seems like the perfect playground for the mischievous Missy to wreak her distinct brand of havoc. But her actions here could have catastrophic consequences for the universe, and more importantly, herself. 

Things only get more chaotic when the Doctor arrives, though not the one Missy’s expecting – Part Two of the trilogy features a guest appearance from Sylvester McCoy as the Seventh Doctor. For the sake of the timeline, this incarnation of the Master should never meet this Doctor, but the chance to spar with him might be too much for Missy to resist. 

The Worlds of Doctor Who – Dark Gallifrey: Missy Parts One to Three are now available for pre-order as single-disc collector’s edition CDs (+ download for just £10.99 each) or downloads only (for just £8.99 each). 

The three episodes, all scripted by Rochana Patel, are: 

Part One, due for release in April 

On a remote and isolated planet, where technology cannot progress beyond steam-power, two thieves are on the run. Hunted and trapped by automaton policemen, they look certain to hang for their crimes… 

 …until Missy drops into their world.  

Their lives are about to change forever, as is the fate of their entire planet… 

Part Two, due for release in May 

Missy needs to find the Doctor. 

However, it’s very important it’s the right Doctor – she wouldn’t want to accidentally slip up and meet an earlier incarnation by mistake, because the consequences of that could be truly catastrophic… 

Part Three, due for release in June 

Choices have been made. Fates are being forged. 

There are new friendships, new alliances, and a war to be fought, plus an extremely dangerous new arrival… 

Producer Robert Valentine said: “The Dark Gallifrey saga is about to continue in style with Missy, a dimension-shattering three-part steampunk adventure starring Michelle Gomez as the Doctor's wild and wicked nemesis. 

“Missy finds herself seriously lost in a pocket dimension that shouldn't exist – part of the fallout of Dark Gallifrey. But she soon finds that there's fun to be had, schemes to hatch, and stories of a time travelling hero with a Scottish accent. Let the battle of the brollies commence! 

“Watching Michelle Gomez return to the role was a magical thing to witness, and she was absolutely delighted to be playing off Rochana Patel’s incredible script. Missy is a role Michelle was born to play, and in Dark Gallifrey: Missy, she plays it to the hilt.” 

Big Finish listeners can pre-order all six of 2025’s Dark Gallifrey instalments – which includes the Missy trilogy as well as a second trilogy, starring a character yet to be announced – for just £60 (on collector’s edition CD + download) or £50 (download only).  

The complete Dark Gallifrey pre-order bundle, including all eight trilogies, each following a different renegade Time Lord, is just £210 (on collector’s edition CD + download) or £188 (download only).

All the above prices include the special pre-order discount and are subject to change after general release. 

Please note that Big Finish is currently operating a digital-first release schedule. The mail-out of collector’s edition CDs may be delayed due to factors beyond our control, but all purchases of this release unlock a digital copy that can be immediately downloaded or played on the Big Finish app from the release date.