ELEMENTARY

When a hedge fund manager who was also running a Ponzi scheme is murdered, Holmes and Watson must determine which of his clients is guilty. Also, Sherlock contemplates sponsoring a fellow recovering addict.

Holmes and Watson come face to face with Moriarty when their one-time adversary is brought in as a consultant on a kidnapping case. Meanwhile, Detective Bell continues his struggle on the road to recovery.

When a body is found in a barrel, Holmes and Watson launch an investigation into the mafia's ties to the murder. Meanwhile, Sherlock attempts to make amends with Detective Bell.

When Joan revisits one of Sherlock's cold cases, she discovers an unsolved murder is connected to a rare prehistoric fossil. Meanwhile, Sherlock finds himself in uncharted territory when his duties as a sobriety sponsor cross his personal boundaries.

Holmes' latest investigation takes him inside a professional dance company when an up-and-coming ballerina is murdered. Meanwhile, Watson embarks on a solo enquiry to find a homeless veteran when his friend alleges he was abducted.

Tensions rise when Holmes and Watson are forced to partner with Gareth Lestrade, Sherlock's former Scotland Yard colleague, on a bombing investigation.

Holmes and Watson consult on a case in which a man suspected of murdering his wife years ago receives a ransom demand for her safe return. Meanwhile, Lestrade overstays his welcome at the brownstone and seems unwilling to leave.

When a famous cancer researcher is found dead, Holmes and Watson must determine if the scientist's untimely demise was tied to his latest cutting-edge invention. Meanwhile, Bell is finally cleared to re-enter the field.

A serial killer known for biting his victims appears to be killing again, even though he was presumed dead.

A pickpocket dies of anthrax poisoning, putting Holmes and Watson on the trail of the toxin's source in order to prevent more deaths.

When Sherlock's brother Mycroft makes a surprise return to New York, his motivations cause discord between Sherlock and Joan. Meanwhile, a missing person case takes Sherlock and Joan inside the world of unmanned aeronautics.

Business becomes personal for Sherlock when he is forced to partner with his estranged brother, Mycroft, to solve a case with life-or-death consequences.

Holmes and Watson encounter MI-6, the British intelligence agency, when a standard murder investigation turns out to have international and political implications.

Rising tension between Sherlock and Watson bring their partnership to a crossroads, but they endeavor to put their differences aside while they help Sherlock's brother, Mycroft, who faces accusations of treason and murder, on the season finale