Overview
"The Empty Hearse" is the first episode of the third series of the BBC television series Sherlock. It was written by Mark Gatiss and stars Benedict Cumberbatch as Sherlock Holmes, Martin Freeman as Dr John Watson, and Mark Gatiss as Mycroft Holmes. It also marks the first appearance of Amanda Abbington as Mary Morstan and Lars Mikkelsen as Charles Augustus Magnussen.
Inspired by "The Adventure of the Empty House" and "The Lost Special" by Sir Arthur Conan Doyle, the episode follows Sherlock Holmes' return to London and reunion with John Watson, along with an underground terrorist network. The episode was first broadcast on BBC One and Channel One on 1 January 2014. It garnered a viewership of 12.7 million people and received positive reviews.
Plot
Two years after his supposed death (depicted in The Reichenbach Fall), Sherlock Holmes has been completely absolved of the slanderous accusations against him originated by Jim Moriarty and secretly returns to London to help his brother Mycroft uncover an apparent imminent terrorist attack. An interleaved scene shows a version of how Sherlock might have faked his death: by jumping from the roof with a bungee cable, bouncing back and entering the building through a window, leaving Moriarty's body with a Sherlock mask to mislead John and other onlookers, John himself being hypnotised by Derren Brown to give the time for this to be set up. This version of events is quickly shown to be a conspiracy theory invented by Philip Anderson, who feels responsible for Sherlock's death.
From Wikipedia (CC BY-SA 4.0).