Complete story — includes the ending
Sherlock disarms the bomb and deduces that it was not arranged by Vikner, but by a rival who wants to frame him and make him the target of Moriarty's vengeance; Moriarty has ordered her organization to not harm Sherlock and Joan. Sherlock and Joan find out with help from Morland that the bomber is connected to an Iranian diplomat in the organization, Hashemi. She reveals that she and others wanted someone with more finesse to take charge - Morland. However, Vikner disposed of his inside rivals and targeted Morland. She also reveals the enormity of the world-wide organization. Sherlock, Joan and Morland frame Vikner for a federal crime, but he vanishes, tipped off by a contact inside the FBI. Morland, to protect Sherlock, dismisses his security detail and meets Vikner. However, Hashemi's people kill Vikner. Morland meets Sherlock on the brownstone's rooftop, revealing that he has taken over leadership of the organization because it can only be dismantled from within and that it was the only way to guarantee he would not lose his son. He also promises that the organization will no longer have a presence in New York and prepares to return to London.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Elementary episodes. HTML formatting and reference markers removed. · Content license