Doctor Who - Zaltys is released today on CD and Download. Directed by Barnaby Edwards, this Matthew J Elliot story stars Peter Davison, Janet Fielding, Sarah Sutton and Matthew Waterhouse alongside guest stars Rebecca Root, Philip Franks and Niamh Cusack:

In the Vortex, the TARDIS comes under a form of psychic attack – resulting in the abductions of first Adric, then Tegan. Following their trail, the Doctor and Nyssa arrive under the lurid skies of the planet Zaltys, whose entire population has vanished in strange circumstances. Soon, they discover that Zaltys is now the target of treasure seekers, come to scavenge this so-called Planet of the Dead…

Meanwhile, deep below the planet’s surface, Adric learns the earth-shattering reason why the people of Zaltys disappeared... and why they were wise to do so. And Tegan is, quite literally, in the dark – enduring interrogation by the mysterious Clarimonde. Any friend of the Doctor’s is Clarimonde’s enemy... because theirs is a blood feud!

Doctor Who - Zaltys can be bought on Download or CD for £12.99 and £14.99 respectively - or as part of a six- or 12-story subscription: prices start from as little as £54 and offer bargain prices, extended extras downloads, free script downloads and up to four exclusive Doctor Who Subscriber Short Trips a year (Paul J Salamoff's Doctor Who - Collector's Item debuts with today's release). Any CD purchase unlocks digital access exclusive to Big Finish listeners - use the free download/playback app for Apple or Android to listen wherever you are...

Next month's main range story stars Peter Davison, Sarah Sutton and Nicholas Briggs in Doctor Who - Alien Heart / Dalek Soul: