Available later this month, Blake's 7: The Liberator Chronicles Volume 12 is the latest and final entry in Big Finish's long-running collection of audio box-sets based on the legendary Terry Nation's science-fiction series – and today we're pleased to unveil an exclusive preview clip from the epic series finale!

Featuring Steven Pacey as Del Tarrant, the preview finds the freedom fighter trapped in an ancient jungle, where a terrible super-weapon is about to be unleashed – the Armageddon Storm...

Featuring the return of Paul Darrow as Kerr Avon, Jan Chappell as Cally, Michael Keating as Vila Restal, Steven Pacey as Del Tarrant and David Warner as Tavac, Blake's 7: The Liberator Chronicles Volume 12 is the climatic final chapter of a story four years in the making. The set contains the following three stories:

12.1 Corners of the Mind by Andy Lane

Avon is trapped in a labyrinth full of puzzles, with no way to teleport to safety and deadly traps at every corner. He needs all his wits to survive, but there is one problem - he is losing his mind with every puzzle, piece by piece, memory by memory.

12.2 Capital by Guy Adams

The Armageddon Storm. A weapon so dreadful that it can lay waste to entire planets. A weapon that Avon has used to hold the Federation to account. A voice from the past brings news of its redeployment… and the fate of Blake. Del Tarrant is sent to Earth to recover both - but will he survive?

12.3 Punishment by Guy Adams

It’s the end of the world and Vila’s father has returned. He isn’t sure what is worse. With the crew of Liberator arrested and Tarrant dead, can Vila rescue the man he hates and save the day? A coward turned hero… with the fate of planet Earth hanging in the balance.

You can pre-order Blake's 7: The Liberator Chronicles Volume 12 today from the Big Finish website for £25 on CD and £20 to download. As with the majority of Big Finish releases, a complimentary download is included with all CD orders – meaning you can experience the Liberator's climatic battle as soon as it's available!

The Armageddon Storm first appeared in Blake's 7: The Liberator Chronicles Volume 3 by Cavan Scott and Mark Wright, with Tavac making his debut in Blake's 7: The Liberator Chronicles Volume 9, also by Scott and Wright. The entire series is still available to order today from the Big Finish website, with prices starting from just £12 each. Full-cast and audiobook Blake's 7 adventures are also available.