The story introduces Lalla Ward as the newly-regenerated Romana. The TARDIS lands the Fourth Doctor and Romana on a strangely familiar planet. There, they meet the android Movellans, who are locked in a war with the Daleks. The planet is Skaro, and in a bunker sits an enemy long thought dead — Davros, creator of the Daleks.
Knowing that he is about to be arrested for murder, John Hector McFarlane asks for Sherlock Holmes' assistance in establishing his innocence. McFarlane is a solicitor who was visited the previous day by Jonas Oldacre who wanted to draw up a will. McFarlane was astonished to learn that Oldacre was naming him as the beneficiary of his fortune. McFarlane had never met the man who ...
