Elementary: Season 4

Season 4 overview

Sherlock and Joan investigate missing women and a murder at a research facility. With Sherlock no longer employed by the NYPD, they take work from the FBI.

Key story beats

  1. A Missing-Women Investigation — A dying killer asks Sherlock to investigate his Honduran wife, who disappeared years earlier. The case connects her disappearance to another missing woman.
  2. A New Investigative Employer — No longer employed by the NYPD, Sherlock persuades the FBI to hire him and Joan. Their investigation of a research-facility triple homicide uncovers stolen work on a purported brainwashing technique.
  3. Morland Enters the Case — After a sniper kills four people, Morland offers help because he knows the shooter's identity. The investigation reveals that the apparently random attack concealed a specific target.
  4. Suspicions Between Father and Son — Sherlock's search for the person behind the shooting produces empty leads. He confronts Morland after suspecting that his father may suspect him, and Morland admits Sherlock had once been considered a suspect.
  5. A Murder in the Morgue — A bomb hidden inside a body explodes in the morgue and destroys evidence from multiple crimes. Sherlock determines which investigation the bombing was meant to disrupt.
  6. A Robbery Plan Collapses — Sherlock plans an operation to obtain a biker gang's computer for a colleague of Gregson. The undercover insider dies before the plan, and his body-camera footage raises questions about what happened.
  7. A Disguised Triad Killer — Gregson asks Sherlock and Joan to help prevent a gang war after three triad members are murdered. The investigation identifies a mortician who used a lifelike disguise to approach the victims.
  8. A Mechanical Beast — A witness describes a glowing animal connected to a fatal truck collision. Sherlock recognizes that the creature threatening a man in his mansion is a robot developed for the US Army.
  9. Lin Wen Seeks Help — Lin Wen asks Sherlock and Joan for help after an illegal poker game is robbed and she is framed. Her claim that she knew Mycroft unsettles Joan, while Sherlock pursues the case.
  10. A Staged Poker Robbery — Footage of the poker game leads Sherlock to deduce that the dealer and thieves staged the robbery. Agent McNally intervenes as the case's participants and motives come into focus.
  11. A Bombing Targets Morland — The Russian hitman bombs Morland's office. Sherlock traces the threat toward an economics professor and discovers that the professor leads Moriarty's organization.
  12. The Organization's Leader — The season reveals that the professor heading Moriarty's organization is also the father of her daughter. Morland pressures Sherlock to disclose the caretaker's identity, but Sherlock refuses.
  13. A Rival Plot Emerges — Sherlock disarms a bomb and deduces that the professor did not arrange it. The bomber sought to frame him and make him the target of Moriarty's vengeance.
  14. Morland's Hidden Ambition — An Iranian diplomat reveals that she and others wanted a more capable leader for the organization: Morland. The professor has already eliminated his internal rivals, intensifying the conflict over control.
  15. The Hitman Is Arrested — The Russian hitman is arrested but provides no useful information. Sherlock and Joan face an unresolved struggle over the criminal organization and Morland's role in its future.

Seasons

Interactive Features

Episode Guide

Content sources

Plot analysis generated from content on Wikipedia, licensed under CC BY-SA 4.0.

Related entry on Wikidata (Q247643), public domain (CC0).