What a letdown, after The Sky Men turned out to be one of the best Master stories we have this to bring us back to the mediocrity of the second story. Jacobi is great and the effects work well but there are a bunch of lazily used tropes that Time War stories recycle constantly like the up-to-now unmentioned superweapon and a secret Gallifreyan outpost on Earth.

The tropes also make the Master look a lot less cunning than the previous story. He uses the weapon in a pretty wreck-less manner, overcomes a trap off-screen, explains his entire plan to his captives and then leaves the room.

This is still a somewhat entertaining story but it's a disappointing follow up to one of the best stories of the range