Amazingly, next week’s episode of Doctor Who is already the last of the series, with the show next returning to BBC One for its Christmas special on New Year’s Day.

The finale, titled ‘The Battle of Ranskoor Av Kolos’, is written by Chris Chibnall and directed by Jamie Childs, who also helmed ‘It Takes You Away’, plus ‘The Woman Who Fell to Earth’ and ‘Demons of the Punjab’.

Check out the trailer below.

The official synopsis reads:

On the planet of Ranskoor Av Kolos lies the remains of a brutal battlefield. But as the Doctor, Graham, Yaz and Ryan answer nine separate distress calls, they discover the planet holds far more secrets. Who is the mysterious commander with no memory? What lies beyond the mists? Who or what are the Ux? The answers will lead the Doctor and her friends towards a deadly reckoning.

The trailer sees a mysterious commander called Paltraki (Games of Thrones‘ Mark Addy) suggest he can’t leave the planet because of “the battle” – whatever that means – and features a harsh and sinister voice that rasps, “You gave me my destiny!” Could this be the voice of the Ux?

Other guest cast members include Downton Abbey‘s Phyllis Logan as Andinio, The Innocents star Percelle Ascott as Delph and Jan Le as Umsang.

The Doctor Who series 11 finale ‘The Battle of Ranskoor Av Kolos‘ airs on Sunday, December 9 at 6.25pm.