This adventure features only the Doctor, who’s still angry and devastated after his companion Clara was killed in the previous episode. He’s never felt more alone and wants to get to his home planet Gallifrey – but somehow he gets trapped in a castle-like world which is unlike any other place he’s experienced before!

And there are reminders of Clara everywhere. It’s here The Doctor discovers finds out he must pass an almost impossible challenge, to escape, but standing in his way, however, is a fearsome creature, the Veil, which could well be the ‘Hybrid: half Dalek half Time Lord’ warrior that’s been a Time Lord legend for centuries. But is it friend or foe? The Doctor can only find out by facing it, and his fears…

After an amazing battle of wits with the Veil, the Doctor eventually makes it through to Gallifrey where he meets a small child…