Doctor Who Flux: 10 Huge Questions After War Of The Sontarans

10. How Did The Doctor, Yaz and Dan Survive The Flux?

With the recent trend towards self-contained episodes, it's good to see the return of the weekly cliff-hanger and The Halloween Apocalypse ended with a particularly dramatic one. With the Flux is about to enter the open doors of the TARDIS, the Doctor contemplates the end of the universe.

The resolution is not so satisfying - with our heroes waking up in the 1850s less disoriented than they ought to have been. They have been ejected from the nearby TARDIS, which we later learn no longer has doors. Once again, Dan seems to be taking the whole crazy experience in his stride.

The Doctor reasons that the Lupari shield of interlocked ships must have successfully cocooned the Earth, but it’s not clear how the TARDIS passed through it or what happened to the Flux when it did. And how convenient for the TARDIS to land in the one moment in the Earth’s history the Sontarans had chosen to test their batter-free temporal war efforts on.

More importantly, have they brought a part of the Flux with them? Is that why the TARDIS has hidden its doors, to keep the Doctor and the Flux apart? Or is the Flux somehow already inside the Doctor and the TARDIS is protecting herself?