''Sherlock' Season 4 News & Updates: Episode 2 [VIDEO] Encounters Most Deadly Enemy Culverton Smith, Will Sherlock Stop Him In Time?

'Sherlock' Season 4 Episode 2 will feature an abominable villain who must be stopped at all costs- will Sherlock successfully defeat him? The 3rd and final episode will be screened in over 350 theatres in U.S.

Niyati S.