This story is said to take place afew moments after Arc of Infinity, the Doctor having left Tegan and Nyssa in a hotel in Amsterdam.
I believe it takes place shortly after the (poorly made but well-novelised) story Warriors of the Deep. The ever-present dark tone, gritty outlook of the world and the sheer danger the Doctor and the characters face in the story are PURE and UNDENIABLE season 21 material.
Plus, the Doctor's image on the cover looks like he did in Season 21, shorter hair and a slightly different outfit. So when you watch the story, remember when the Doctor mentions Nyssa and Tegan, just pretend he said TURLOUGH and Tegan, the story fits so perfectly after… Read more