It featured the Doctor and Clara. Its synopsis noted that "the Doctor and Clara [found] themselves in an alien world". 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 in-universe counterpart of the real world Doctor Who television story Face the Raven that exists within the Doctor's universe. It was a visual meta-fictional cameo in The Zygon Isolation, where Petronella Osgood and her Zygon duplicate scroll through BBC iPlayer searching for something to watch.