Series 10: Empress of Mars – Official Synopsis

The official story synopsis for Empress of Mars, the ninth episode of Series 10, has been released by the BBC:

Written by Mark Gatiss and directed by Wayne Yip.

The Doctor, Bill and Nardole arrive on Mars, and find themselves in an impossible conflict between Ice Warriors… and Victorian soldiers. As the Martian hive awakens around them, the Doctor faces a unique dilemma – this time the humans, not the Ice Warriors are the invaders. When Earth is invading Mars, whose side is he on?

It airs Saturday 10 June on BBC One, with the time to be confirmed.