The Sixth Doctor and Mel are on a rescue mission in a brand-new box set of high-stakes full-cast audio dramas, due for release in May 2023 from Big Finish Productions.

Colin Baker stars as the Sixth Doctor alongside Bonnie Langford as Melanie Bush in three exciting new adventures in Purity Unleashed, following on from the shocking cliffhanger to Purity Undreamed. The time-travelling duo are frantically trying to get their new friend Hebe (Ruth Madeley) back after she was wiped from existence.

Doctor Who: The Sixth Doctor Adventures – Purity Unleashed – Bonnie Langford & Colin Baker (c) Big Finish

Doctor Who – The Sixth Doctor Adventures: Purity Unleashed is now available to pre-order as a collector’s edition CD box set (for just £19.99) or download only (for just £16.99) from

Doctor Who: The Sixth Doctor Adventures – Purity Unleashed

The story titles in the box set are:

  • Broadway Belongs to Me! by Matthew Sweet
  • Purification by Chris Chapman
  • Time-Burst by Ian Potter

Producer Jacqueline Rayner, who was nominated for Best Drama & Fiction Producer at the 2022 Audio Production Awards, said: “I think a lot of people were shocked by the conclusion to Purity Undreamed. The thing is, Doctor Who is the best ever adventure series – it’s fun and exciting and thrilling – but always, from its very earliest days, it had a serious heart. Disabled people are effectively erased from society every day and those complicit in it don’t consider themselves villains. They may even think they’re doing good. Some of our best writers have pulled out all the stops to tell amazing, funny and tragic stories in Purity Unleashed and the loss of Hebe underpins it all.

Doctor Who: The Sixth Doctor Adventures – Purity Unleashed – Colin Baker (c) Big Finish

Praise for The Sixth Doctor Adventures: Purity Undreamed:

Purity Undreamed brings passion and style to what’s becoming one of Big Finish’s most exciting ranges.” – Blogtor Who. Check out our full review here.

“Thanks, Big Finish, for that doozy of a cliff-hanger and the story that led up to it. I can’t wait to hear how you write yourselves out of it.” – Sci-Fi Pulse

“[…] it manages to set up what may become one of the great story arcs from Big Finish with an interesting villain at the heart of it.” – Indie Mac User

Doctor Who – The Sixth Doctor Adventures: Purity Unleashed is now available to pre-order for just £19.99 (collector’s edition CD box set+ download) or £16.99 (download only).

Big Finish listeners can save money by purchasing this box set as part of the 14-release Classic Doctors Bundle for £274 (collector’s edition CD box set + download) or £237 (download only). A 12-release bundle is also available from £198.

Alternatively, both 2023 releases in The Sixth Doctor Adventures range can be pre-ordered together for just £38 (collector’s edition CD box set + download) or £33 (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.



Duration: 180 minutes approx.

Released: May 2023, exclusively on the Big Finish website.

  • Director: Helen Goldwyn
  • Script Editor: Robert Valentine
  • Writers: Matthew Sweet, Chris Chapman and Ian Potter
  • Producer: Jacqueline Rayner
  • Senior Producer: John Ainsworth
  • Executive Producers: Nicholas Briggs and Jason Haigh-Ellery


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