Doctor Who - The New Adventures of Bernice Summerfield IV: Ruler of the Universe is released in September, starring Lisa Bowerman and David Warner as Professor Bernice Summerfield and the Unbound Doctor she's found herself sharing a universe with. A brand new trailer debuts on the Big Finish website today following its premiere in yesterday's Big Finish Podcast:

We're also delighted to be able to unveil the full story details for the set:

1) The City And The Clock by Guy Adams

Bernice is on an archaeological dig for the mythical Apocalypse Clock. Can it really be the key to saving the universe? The ghosts of the planet have other ideas.

2) Asking For A Friend by James Goss

Vast wars are raging across the stars, planets are dying, and the Doctor is sat on a psychiatrist's couch. What's it like to be the Doctor's therapist?

3) Truant by Guy Adams

The President of the Universe has run away. Bernice has to hunt him down, but he's too busy having fun. Evil warlords! Impossible escapes! Sinister plans! The Doctor's on an adventure.

4) The True Saviour Of The Universe by James Goss

Bernice finds that time has run out for the Doctor and the universe. Is this really the end of everything? Help is on hand from an unlikely quarter.

Doctor Who - The New Adventures of Bernice Summerfield IV: Ruler of the Universe can be pre-ordered at special pre-release prices of just £20 on Download and £23 on CD, these prices frozen until the set's general release at the end of October when they become £25 and £30 respectively.

A CD purchase will unlock digital access at the set's release as an exclusive to Big Finish listeners - if you're using an Apple or Android device don't forget the free Big Finish Listening app for wherever you are in the world!

Check out the full range of Bernice Summerfield at Big Finish here, while our entire range of Doctor Who Unbound stories can be found here.