Broadcast: Saturday 17th June 2017
9:20pm-10:10pm +03 (18:20 GMT) < > « »  < > « »
Presented with Arabic subtitles
BBC First

Featuring: Peter Capaldi, Matt Lucas, Pearl Mackie, Michelle Gomez

A long time ago, the ninth legion of the Roman army vanished into the mists of Scotland. Bill has a theory about what happened, and the Doctor has a time machine. But when they arrive in ancient Aberdeenshire, what they find is a far greater threat than any army. In a cairn, on a hillside, is a doorway leading to the end of the world…
Synopsis Source: Doctor Who Guide