This story has the best looking aliens (bar from the daleks) that have appeared in the show out so far, they really stand the test of time and look perfect in black and white.

I liked the concept of having the story set in lots of different places over 6 episodes, the fact that the show can be set anywhere is one of its inherit strengths, which it exploits here.

The scenes where Susan was kidnapped were the best part for me. The worst part were the unlikely ways in which the Doctor picked up clues for the court case.