Series: 9
Original Air date: November 14, 2015
Number Doctor: 12th
Companion(s): Clara Oswald
Writer(s): Mark Gatiss
Director(s): Justin Molotnikov
Guest Stars:
Reece Shearsmith as Rassmussen
Elaine Tan as Nagata
Neet Mohan as Chopra
Bethany Black as 474
Paul Courtenay Hyu as Deep-Ando
Paul Davis as King Sandman
Tom Wilton as Sandman
Matthew Doman as Sandman
Synopsis: Vision recovered from the wreckage of Le Verrier Space Station shows how the Doctor and Clara became entangled in a rescue mission. As the footage plays out, a horrifying secret is uncovered.