Sci-Fi Bulletin: Exploring the Universes of SF, Fantasy, Horror and Spy-fi!

Details have been released for the multimedia event featuring Jo Martin’s Fugitive Doctor.

Doctor Who: Circuit Breaker launches on 25 June 2026, kicking off an epic, multi-platform adventure unfolding this summer across audio, publishing, gaming and digital, bringing fans together for one connected, must-follow Whoniverse event.

The story event will see a single, escalating crisis play out across multiple formats, with each chapter unlocking new clues, new dangers… and a new side to the Time Lord.

In the depths of UNIT’s most secure facility, the Black Archive, familiar objects have been pulled through time and space surrounded with a dangerous energy signature threatening to tear reality apart. With time running out, newly appointed Head of the Black Archive, Osgood (Ingrid Oliver) and her assistant Andrew (Omari Douglas) turn to the only person who can help… the Doctor (Jo Martin).

This is no ordinary crisis, and not the Time Lord they are familiar with. As the Doctor confronts her most infamous enemies such as the Daleks, Cybermen, Sontarans and a rogue Weeping Angel, she is forced to complete a mission with an insidious presence lurking in the shadows.

Secrets begin to surface, and trust between UNIT and the Doctor begins to erode as those who idolise her start to question if she really is the Time Lord they thought they knew…

How to Follow the Story

25 June: Calling the Doctor 
UNIT website, written by Esmie Jikiemi-Pearson

8 July: Adversary of the Daleks
Titan Comics, written by Dulce M. Montoya and Dan Watters, with stunning art from Roberta Ingranata and Sami Kivelä.

23 July: The Honourable Society
Doctor Who Magazine issue 632, written by Jason Quinn and illustrated by Anthony Williams.

30 July: The Deadliest Weapon
BBC Audiobooks Audio Original written by Steve Lyons, narrated by Jo Martin with David Banks as the Cyber-Leader

4 August: Dawn of the Daleks
Titan Comics, written by Dulce M. Montoya and Dan Watters, with stunning art from Roberta Ingranata and Sami Kivelä.

6 August: Castling
East Side Games written by Mario Mentasti

17 August: Don’t Blink!
UNIT website, written by Esmie Jikiemi-Pearson

20 August: The Doctor and the Three Witches
Puffin book written by Janelle McCurdy

27 August: Moment Mori
East Side Games written by Mario Mentasti

31 August: The Black Archive Files
Circuit Breaker Blu-ray release

3 September: The Kaleidoscope
Penguin Random House book written by Jo Martin, published by BBC Books

22 September: Full Circuit
Big Finish audio story written by Robert Valentine

24 September: Short Circuits
Two Big Finish audio short stories including: Battleships by Alex Hewitt and Get Rich or Die Trying by Alex Hewitt, from a story by Natasha Siegel

Esmie Jikiemi-Pearson, writer, said: “Circuit Breaker is truly unique in the Doctor Who universe. Just as the Fugitive Doctor rocked everyone’s world when they first appeared on our screens, we wanted to bring something exciting and new to the fans, a story that takes the best parts of Doctor Who and melds them with a fresh and innovative boldness that makes for fantastic storytelling.”

Jo Martin added: “Circuit Breaker now has an official start date! I’m delighted for fans to join the Fugitive Doctor on a brand-new adventure! One that may even showcase a more vulnerable side (yes, she does have one!). But for now, I invite you to take a first look at my Doctor’s brand new costume.”

Stephen Davies, SVP Global Licensing, BBC Studios said: “Circuit Breaker offers a bold new way to experience Doctor Who and the Whoniverse across multiple platforms. Working with our trusted, long-standing partners and creative talent, we’ve created something truly ambitious in both scale and storytelling. We’re excited to bring this coordinated global event to audiences around the world and deepen fan engagement.”