The Martian Invasion of Planetoid 50, written by Jonathan Barnes, brings together some of the characters from the eras of the Eleventh and Twelfth Doctors, as the Tenth Doctor (David Tennant) encounters Missy (Michelle Gomez) and the Paternoster Gang where Madame Vastra (Neve McIntosh), Jenny Flint (Catrin Stewart) and Strax (Dan Starkey) unite once more. 

Doctor Who – Once and Future: The Martian Invasion of Planetoid 50 is available now to own as a single-disc collector’s edition CD (+ download for just £10.99), or digital download only (for just £8.99), exclusively here. 

The First Doctor arrives in Victorian London amid a Martian invasion. But he discovers all is not what it seems when Missy appears… 

Soon, the Doctor is propelled into a future incarnation – the Tenth – but he is not alone in battling Missy and her Martian invaders. The Paternoster Gang – Madame Vastra, Jenny Flint and Strax – are also here to assist. But can they offer the Doctor any help in solving his own degeneration mystery? 

Writer Jonathan Barnes said: “I always try to include a personal element in my stories so I was pleased to be able to write a sort of love letter to the work of HG Wells as well as the required ingredients.  

“It’s a commentary on fandom too in some ways. The Doctor lands on a planet which seems to have been remodelled as an exact replica of the fictional London in Wells’s War of the Worlds... but who could be responsible for such devilry? Well, check out the front cover!  

“Hopefully there are a few a surprises along the way too...” 

Big Finish listeners can purchase all eight Once and Future audio adventures together in a bundle for just £72 (on collector’s edition CD and download) or £60 (download only).

A special edition series bundle, which contains extended behind-the-scenes extras and music suites for each story, is also available to pre-order for just £62 (as a digital 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 mailout of collector’s edition CDs will be delayed, 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.