They’re the guardians of the Solar System and Earth’s first line of defence. But now the agents of the Space Security Service face their greatest ever threat… 

Having joined David Tennant’s Tenth Doctor in the popular Dalek Universe series, the heroes of the Space Security Service will soon defend the universe once again in their own exciting adventures. Jane Slavin will return as Anya Kingdom, a special agent from the 41st century, alongside Joe Sims as her android colleague Mark Seven. 

These star-spanning escapades will take inspiration from the imaginative creations of Terry Nation. Nation devised the Space Security Service for the 1960s Doctor Who TV serials Mission to the Unknown and The Daleks’ Master Plan, and expanded upon them in the Dalek annuals and comics, as well as a never-made TV spin-off series, The Daleks. 

The fast-paced new adventures will see Anya and Mark encounter monsters from across the universe, from Voord in the Thames to a rogue Thal scientist. 

There are two box sets of The Worlds of Doctor Who – Space Security Service to look forward to, each comprising three thrilling episodes of full-cast audio drama. The first volume, The Voord in London, is due for release in June 2025; details of the second volume will be announced at a later date. 

Space Security Service: The Voord in London is now available to pre-order for just £19.99 (as a digital download to own), exclusively here. 

The three episodes in this first box set are: 

The Voord in London by LR Hay 
The Thal from G.R.A.C.E. by Felicia Barker 
Allegiance by Angus Dunican 

Producer Simon Guerrier said: “This series has long been in the works – arguably since Terry Nation tried to launch his Daleks TV show back in the 1960s. We've taken that as our cue and come up with a fast-moving, fun series of adventures for Space Security Service agents Anya Kingdom and Mark Seven, who were such a hit in the Dalek Universe range. 

“We start with Anya back in London in the 20th century, working undercover as a police officer on the trail of one group of aliens - and then getting caught up with another. Soon the action moves to... well, just wait and see!” 

Big Finish listeners can save money by pre-ordering both volumes of Space Security Service in a multibuy bundle for just £38 (download to own), exclusively here. 

All the above prices (including pre-order and multibuy bundle discounts) are fixed for a limited time only and guaranteed no later than August 2025.