The Doctor, Liz and the Brigadier investigate the alien 'spores' - blobs of deadly mirror matter from the dawn of time. Liz summons fellow scientists to help the investigation. But one is secretly working for the BNKR, an organization preparing to take over the world.
The BNKR unleash a killer spore. Meanwhile, the Doctor and Liz race to stop another spore, locked in a countdown to destruction.
Can the Doctor and his friends prevent the entire Earth being converted into mirror matter?
Brigadier Alistair Lethbridge-Stewart © Haisman & Lincoln and used under licence. With thanks to Hannah Haisman and Candy Jar.
Recorded on: 8-9 and 11 July 2024
Recorded at: White Noise
Producer David Richardson said: "Kate Orman is one of my favourite authors of Doctor Who fiction, and after the success of The Dead Star, I was keen to sign her up for another as soon as possible.
"In The Mirror Matter, she has written a truly authentic Season 7 story - it's the exiled Doctor, Liz and the Brigadier investigating an alien incursion with a difference, told over (naturally) seven episodes! Once again, Kate has blended two of her passions - Doctor Who and real science - into a truly compelling yarn."
Kate Orman added: "Season 7 is a terrific season to play in. The stories are about what would have been contemporary scientific issues, like nuclear power and early space travel. There's some playfulness around the scientific ideas, but the science helps to give it a very concrete, realistic feeling. So, this inspired me to get a genuine piece of science to base my own story on.
"One of the other reasons it's such a brilliant season is those huge seven-episode stories. Writing a seven-episode story is great. You have six cliffhangers for a start. But you also have depth; you have time and space to expand on the scientific ideas, on the characters and their relationships, which I particularly enjoyed doing when it came to Liz Shaw."
