Last updated 29 July 2017


Dethras

Dethras

Series Episode Number: 70

First Broadcast: Sun 30 Apr 2017 - ~8:00pm UTC (United Kingdom)
Running Time: 60 minutes





In the control room of a World War 2 submarine something strange has started to happen. As the ship runs out of control, its crew begin to fall unconscious...

Finding the submarine in the last place they'd have expected, the Doctor and Romana are confronted by a mystery. Once fully populated, there are now only three men on board. And there's now also a chimpanzee. 

What has happened to the rest of the crew? What are the strange noises they can hear outside the hull? 

And most importantly, who, or what, is Dethras?