The Girl Who Died (in-universe)

The Girl Who Died was the fifth episode of the ninth series of Doctor Who. It followed Before the Flood and was succeeded by The Woman Who Lived.

It featured the Doctor and Clara Oswald, as well as an individual resembling Ashildr. Its synopsis mentioned that the Doctor and Clara "help[ed] protect a Viking village". By 10 May 2020, the episode was available on BBC iPlayer along with the rest of series 9. (WC: The Zygon Isolation)

Behind the scenes
This is a version of The Girl Who Died that exists within the Doctor's universe.