Who do you trust?

The Doctor thought he knew. And then his plane was blown up. Tonight, we find out what happens when a rebellious Zygon faction wants to take the world - and has already succeeded in taking over London.

Shapeshifting Zygons are everywhere in the UK, and there is no way of knowing who to trust. With UNIT neutralised, only the Doctor stands in their way. But how do you stop a war? And what can the Doctor do to save his friends?

The BBC has released two spoilerific clips, but if you'd already gathered that the Doctor and Osgood survived that explosion, this one isn't going to ruin your enjoyment of The Zygon Inversion:

In our review of The Zygon Invasion, we said:

"Although it's been billed as such, it's simply not a thriller. Tonally, too, this isn't a sequel to The Day of the Doctor. It stands as an entirely separate entity, and with expectations altered, and the plot set up, I have every hope that next week's The Zygon Inversion will excel."

Written by Peter Harness and Steven Moffat, The Zygon Inversion airs tonight (7th November) on BBCOne at 8pm.