Doctor Who: Heaven Sent Images Released

The BBC has released new images from the next episode of Doctor Who, titled "Heaven Sent."

In "Heaven Sent," trapped in a world unlike any other he has seen, the Doctor faces the greatest challenge of his many lives. One final test. And he must face it alone. Pursued by the fearsome creature known only as the Veil, he must attempt the impossible. If he makes it through, Gallifrey is waiting...

Check out the images in the gallery below.

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