Under The Lake Trailer - Series 9 Episode 3 - Doctor Who - BBC

BBC has released a 30-second sneak preview of next week's Doctor Who episode: "Under The Lake."

When an underwater base comes under attack, the Doctor and Clara must save the frightened crew and defeat an impossible threat. But what is behind these terrifying events? And can they really be haunted by ghosts?

Check it out the promo in the video below.

Catch the third episode of the new series, "Under The Lake" from the 3rd October.