Masterpiece Mystery Since Sherlock’s return, it seems that no one great criminal has stepped up to challenge him. But things aren't quite as tranquil as they seem, for there is actually an evil mastermind at work deep beneath the surface. Newspaper ... (more)magnate, Charles Augustus Magnusson, is just a businessman, yet somehow he seems to control the most powerful people in the western world. Now, Sherlock and John Watson find themselves squaring off with this repulsive and very evasive man...and suddenly, everything in Sherlock’s world is in jeopardy. Originally aired in the UK as Sherlock: Series 3, Episode 3