Doctor Who: The Girl Who Died Introduction Released

The BBC has released a new video introduction to this week's episode of Doctor Who, titled "The Girl Who Died."

In the video, Peter Capaldi and Jenna Coleman explain that Clara and the Doctor are on a completely unrelated adventure when they somehow find themselves in a Viking village besieged by creatures that feed on conflict. Asked for help, the Doctor must do something very un-Doctor like – train a village for war.

Check it out below.

In "The Girl Who Died," captured by Vikings, the Doctor and Clara 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?

Doctor Who airs Saturdays at 9 p.m. ET on BBC America.