◄Season Two► Premiere: September 26, 2013 — Finale: May 15, 2014 — # of Episodes: 24 Summary: Sherlock's mysterious brother Mycroft has a profound effect on both Watson and Sherlock as his secret endeavours unfold.
Season Two of Elementary was officially confirmed on March 27, 2013 by CBS. Production started in July, with the season premiere being filmed and set in London. Season Two premiered on September 26, 2013 and was released on DVD on August 26, 2014.
Holmes and Watson travel to London to help track down an old partner of Holmes' and investigate an unsolved murder. Sherlock is reunited with his estranged brother who reveals secrets. Although the siblings suffered a drastic falling-out a few years earlier, Mycroft allows Sherlock and Joan to stay in his new home, 221B Baker St. With Joan in the middle, the brothers are forced to confront their very complicated history.
When a well-respected mathematician is found dead, Holmes and Watson set out to solve a murder and the purpose of the highly guarded equation he was trying to decipher. Meanwhile, Watson is conflicted when the son of a former patient approaches her for a loan.
When Holmes and Watson set out to track down a civil contractor who leaked classified information, their lives are disrupted when they are targeted by the group of cyber-activists protecting him. Meanwhile, Watson takes the advice of a friend and signs up for an online dating service.
Holmes and Watson find themselves digging through the dark world of the mob to find a killer when they discover the body of a former assassin. Meanwhile, Watson helps a close friend Jennifer track down a mystery man who swept her off her feet.
Sherlock's brother, Mycroft, arrives in New York and enlists Holmes and Watson to help solve a case involving his former fiancée. Sherlock has a difficult time accepting Mycroft and Joan's relationship.
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, Holmes contemplates sponsoring a fellow recovering addict.
Holmes and Watson come face to face with Jamie 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 Watson reopens an old murder case that Holmes, when still using, hadn't been able to solve; she discovers a rare fossil lies at the heart of the case. Meanwhile, Holmes' sponsee Randy is worried about using again when his old flame, an addict, comes back to live with him.
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 reteam with Gareth Lestrade on a bombing investigation. Holmes forces Watson to suffer through his latest home project when he takes on rehabilitating two roosters, Romulus and Remus, formerly trained for cock-fighting.
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, Gareth 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, Detective Bell is finally cleared to re-enter the field.
When Sherlock's brother Mycroft makes a surprise return to New York, his motivations cause discord between Sherlock and Watson. Meanwhile, a missing person case takes Sherlock and Watson inside the world of unmanned aeronautics.
With Watson kidnapped, the Holmes brothers are extorted to buy her back by acquiring something the kidnappers greatly value. As the clock runs down on Watson's life, Sherlock is forced to work with his despised brother Mycroft.
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.