Complete story — includes the ending
Sherlock and Joan are called to investigate a bombing at a restaurant that targeted finance executives and government officials. On the case, they are reunited and forced to work with Gareth Lestrade, who is now consulting for one of the CEOs involved in the case. Videotape from the hotel attached to the restaurant leads Sherlock and Joan to suspect that Lestrade is covering up his boss's involvement. The CEO is being targeted by a blackmailer who knows about the women (and occasionally men) who have traded sex for favors and that Lestrade has been the intermediary making the actual offers. The CEO is forced to reveal his involvement in order to catch the blackmailing bomber. A subordinate of a government bureaucrat killed her boss so she could take his position and see the federal jobs report before the general public, information she could use to make a fortune in the stock market. Lestrade loses his job and comes to stay with Sherlock and Joan.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license