A dark secret in the Holmes family rears its head with a vengeance, putting Sherlock and friends through a series of sick, manipulative psychological and potentially fatal games.
Sherlock goes up against the powerful and seemingly unassailable Culverton Smith - a man with a very dark secret indeed.
Sherlock Holmes and Dr. Watson find themselves in 1890s London in this Christmas special.
Sherlock goes up against Charles Augustus Magnussen, media tycoon, and a notorious blackmailer.
Sherlock tries to give the perfect best man speech at Johns wedding when he suddenly realizes a murder is about to take place.
Mycroft calls Sherlock back to London to investigate an underground terrorist organization.