This first episode of Jon Pertwee's final story features the return of an old friend, an arachnid visitor, and behind-the-scene surprises, along with multiple references to The Green Death.
A Doctor A Day 256 - Planet of the Spiders, part 1
This first episode of Jon Pertwee's final story features the return of an old friend, an arachnid visitor, and behind-the-scene surprises, along with multiple references to The Green Death.