The Doctor, Nardole and Bill investigate when NASA find a mysterious message under a Martian polar ice cap. Under the surface they find Victorian soldiers mining the red planet.
Joining me this week to discuss Empress of Mars by Mark Gatiss are Denise and Keith, who can be found on Twitter as @cupoftea69 and @50DW50 respectively.
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The interview with Chris Chibnall that I mention can be found here.
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Order Doctor Who, series 10 part 2 on DVD:
On Blu-Ray:
Trap One 