It's a crying shame that the series got cancelled when it did. The Sylvester
McCoy era is probably noted as containing the most confusing stories ever –
(but that's nothing that can't be helped by watching the special features). It
was heading in the right direction.
Over the second and third seasons of the McCoy era, (this particular story is
the third of Season 3), the writers and producers had clearly in mind the
direction they wanted to take the show in, and knew how the characters should be
developed. In many ways, they restored the program to it's original premise,
and brought it back to where it should have been. In this serial, the Doctor
must finally and permanently defeat a force of evil he battled with centuries
ago. All the while, his companion Ace's story of growth and healing continues.
Two brilliant performances by the two lead actors, linked with a great story
that is well directed, makes this another great adventure. I loved it.