The Master and Vienna Salvatori form an unlikely alliance when they’re forced into joining an expedition to a forbidden planet. Accompanied by elite marines, government scientists and a corporate mercenary with access to some very old UNIT files, they go in search of an ancient, subterranean labyrinth infested by an alien lifeform the Master knows all too well… 

The striking Simon Holub cover artwork for Planet Doom features Eric Roberts as the effortlessly evil Master and Chase Masterson as Vienna Salvatori, still trying to get the bounty on his head. But she finds there's an old foe of her nemesis which mars her marathon quest – the Axons. And could one of them possibly be the Eighth Doctor...? 

Paul McGann guest stars in The Worlds of Doctor Who – Master! Planet Doom, now available to pre-order as a collector’s edition CD box set (+ download for just £22.99) or download only (for just £18.99), exclusively here. 

The three thrilling new adventures are as follows: 

Basilisk by Robert Whitelock 

Vienna finds herself prisoner on a warship. Private contractors working with the military's scientific division want her to help them resurrect the Master. Why? Because they need a guide into the bowels of a nameless planet... and the Master is their man. 

Axos Rising by Barnaby Kay 

The Master and Vienna are joined at the hip as they head into the alien labyrinth. But deadlier things than ancient booby-traps await them. Deep in the subterranean darkness, they discover the terrifying entity that has been waiting for millennia to be set free. Vienna is horrified... but the Master knows an opportunity when he sees one. 

Hellbound by Robert Valentine 

With the countdown ticking, the Master and Vienna are desperate to escape, but if Axos gets loose, the entire galaxy is doomed. Vienna needs a miracle, and perhaps she's found one. But probably not the miracle she was expecting. 

Producer David Richardson said: "Our approach to the Master! box sets was always to have a strong sense of place and characters – for each one to have a standalone overall concept. In Planet Doom we have the Master and Vienna thrown towards a strange alien world which they investigate in the company of the military. The secrets buried beneath the surface of this world are a surprise even to the Master himself… and a reunion awaits!" 

Master! Planet Doom is now available to pre-order for just £22.99 (collector’s edition CD box set + download) or £18.99 (download only), exclusively from the Big Finish website. Listeners can also purchase both previous volumes in the Master! range at the discounted bundle price of £44 (collector’s edition CD box set + download) or £38 (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.