Part OneSeries Episode Number: 852
World Premiere: Wed 1 Jan 2020 - 6:57pm GMT [BBC One] (United Kingdom)
First Broadcast: Wed 1 Jan 2020 - 8:00pm EST [BBC America]
Running Time: 59 minutes 50 seconds
6.89 Million (UK)Appreciation Index: 82 (UK)
Audience Share: 25.7% (UK)
Chart Position: 8 (BARB Week (Four Screen)) (UK)
Intelligence agents around the world are under attack from alien forces, so MI6 turn to the only one who can help: the Doctor.