1.2 - The Thousand Worlds

With the high-ranking Time Lord Seratrix behind enemy lines, the War Doctor finds himself assigned to a rescue mission. But any room for manoeuvre is severely restricted by an area of space known as the Null Zone.

Times have changed on Keska, and a countdown to destruction is beginning.

But who are the Taalyens and what is their part in the great and terrifying Dalek plan?

51 out of 55 (92.7%) raters say this story requires a previous story.