Doctor Who: Under The Lake Clips Released

Clara and the Doctor investigate an underwater base that is abandoned and Clara hides from a ghost in these two new clips from this Saturday's episode of Doctor Who: "Under the Lake."

When an underwater base comes under attack, the Doctor (Peter Capaldi) and Clara (Jenna Louise-Coleman) 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 out the sneak peeks in the videos below.

Doctor Who, "Under the Lake," airs Saturday, Oct. 3 at 9 p.m. ET on BBC America.