Doctor Who: Season 10, Episode 3 - ProjectFreeTV

10 - 3: Thin Ice

The Doctor and Bill arrive at the last of the great frost fairs in London, the 1814 Frost Fair, and find themselves investigating a string of impossible disappearances - people have been vanishing through the ice on the Thames! Bill is about to discover that the past is more like her world than she expected, and that not all monsters come from outer space...