Doctor Who Takes on Extradimensional Beings in the Trailer for Flatline

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“Doctor Who” is back in full swing with Peter Capaldi and Jenna Coleman starring in the series’ eighth season (or 34th, to longtime fans) and the show has today revealed a trailer for next weekend’s “Flatline,” the season’s ninth episode. Check it out in the player below with new stills from the episode in the gallery viewer at the bottom of this page.

Separated from the Doctor, Clara discovers a new menace from another dimension. But how do you hide when even the walls are no protection? With people to save and the Doctor trapped, Clara comes up against an enemy that exists beyond human perception.

Written by Jamie Mathieson. Directed by Douglas Mackinnon, “Flatline” guest stars Christopher Fairbank.