On Halloween, all across the universe, terrifying forces are stirring. From the Arctic Circle to deep space, an ancient evil is breaking free. And in present-day Liverpool, the life of Dan Lewis is about to change forever. Why is the Doctor on the trail of the fearsome Karvanista? And what is the Flux?

Starring:

Jodie Whittaker, Bradley Walsh, Mandip Gill, Tosin Cole

Genre:

Adventure, Drama, Family