Doctor Who "The Girl Who Died" Trailer Featuring Game Of Thrones' Maisie Williams

Maisie Williams, best known for playing Arya Stark on HBO's Game of Thrones, will appear in next Saturday's "The Girl Who Died" episode of BBC's Doctor Who television series.

Captured by Vikings, the Doctor (Peter Capaldi) and Clara (Jenna-Louise Coleman) must help protect their village from space warriors from the future, the Mire. Outnumbered and outgunned, their fate seems inevitable. So why is the Doctor preoccupied with a single Viking girl?

Check out the sneak preview in the video below.

"The Girl Who Died" episode of Doctor Who will air October 17th at 9PM on BBC America.