Sherlock Holmes, fresh out of rehab, is teamed with a sobriety partner, a former surgeon named Watson. They have to learn to work together even as they tackle their first case, the mysterious death of a doctor's wife.

Two heirs of a fortune are murder suspects, but one sister has an undeniable alibi and the other is a coma patient. Holmes is baffled as to how a coma patient could be the killer until another addict in his support group gives him an idea.

Holmes is excited to be consulted about the latest strike of 'balloon man', a serial killer who focuses on children. Analyzing the crime scene, Holmes' deductions lead to the recovery of the first victim, Adam Kemper (then 12, now 19). However, Adam somberly refuses to help police find his captor and his latest victim.

Holmes is hired by a Wall Street firm to find a missing executive. He finds the man, murdered, and then detects a pattern of mysterious deaths throughout the company's branches. But who could be benefiting from all of the murders?

During a visit to a hospital's morgue to do some experiments, Holmes deduces that a terminally ill patient has been murdered. Is this an isolated incident or is there an "Angel of Death" operating in the hospital?

After a small jet crashes killing four people, Holmes battles both the police and the NTSB when he believes one of them was murdered before the crash occurred. Meanwhile, Watson confronts Holmes over a past friend, someone named Irene.

Sherlock identifies new murders as the modus operandi of Wade Crewes, the serial killer whose arrest made Captain Thomas Gregson's NYPD career. Their friendship is strained by necessary questions of whether it's a copycat, a former accomplice, or even the real serial killer. Worse yet, what if Crewes' initial conviction rested on a trumped-up investigation, notably by Gregson's partner at the time.

While Watson struggles with Holmes over finding a new sponsor, they work a case of a bombing of an Internet company. The bomb was planted four years ago but it's inconceivable that anyone would plan a bombing so far into the future.

Oriental studies professor Trent Annunzio was killed with a bullet in each eye. Sherlock works out he was a Mahjong gambling addict and in which establishment, where he forces the owner to hand over secret video recordings. Those identify Raul Ramirez, but he was hired anonymously. prime suspect is Trent's academic assistant Brendan O'Brien, whose career he sabotages recently by recommending against an Ivy league promotion, and who has an affair with Trent's Thai wife Jun Annunzio. Sherlock works out the hidden truth and meanwhile gives Watson the decisive push to help clear a former patient and lover, junkie Liam Danow.

Micah Erlich hires Holmes to solve urgently the robbery of diamonds in David Batonvert's Manhattan exchange from his world-reputed security firm's top-range vault model, the 'impregnable' Leviathan, before the news wrecks the manufacturer. Both men remember it was actually cracked once four years ago by a brilliant team of four, who were tried and jailed, but draw different conclusions concerning a connection, which Holmes has to revise while his investigation progresses with the help of his own consultants. Meanwhile he helps Watson deal with her unexpectedly visiting family rather then cancel her buddy job with him.

The manager of a high-end hotel that caters to diplomatic VIPs is found dead in the hotel's laundry. After first suspecting a connection to a prostitution ring, Holmes believes the answer lies in her treacherous past.

Sherlock is called in on a case and immediately recognizes the work of an old foe from Britain. Sherlock sees it as a chance at redemption in catching the man, but first he needs to control his own emotions about the murderer.

Holmes discovers a man running an internet conspiracy site is dead. As he follows the chain of clues, he becomes aware of the "Red Team" and the trail leads him further down the rabbit hole than he ever imagined.

A convicted killer who is supposed to donate a kidney to his sister ends up killing the surgical staff before escaping. Holmes is forced to work with a profiler (whom he can't stand) because she supposedly can predict what he will do next.

Holmes' former drug supplier comes to him for help to find his kidnapped daughter. He agrees to help him despite Watson's protests. When Holmes appears stymied, the former dealer encourages Holmes to go back on drugs, hoping it will help him solve the case.

Detective Bell is nearly killed while driving home one night. A just-released felon is the first suspect but, when he's killed, suspicion moves to Bell's brother who, unlike the dedicated detective, has lived life on the wrong side of the law.

A wealthy scientist comes to Holmes with a unique case: he believes he has been "poisoned" with a genetic disorder. Holmes has to determine how a healthy person can be contaminated with a genetic disease that no one in his family has.

Watson works a case on her own about a woman who has disappeared while Holmes deals with a subway murder. As they work their separate cases they gradually appear to be connected, even though they can't determine exactly how.

In the middle of a winter storm, Holmes and Watson must solve the murder of a guard during a botched robbery and unravel the killer's true plan. The pair also get an interesting new roommate.

A blackmailer uses tapes of underage girls to get money from their fathers. When Holmes witnesses the blackmailer's murder, it becomes a race to find out who his accomplice is and prevent the videos from being released on the Internet.

A man connected to the classification of a valuable building as a landmark trust dies when his pacemaker is deliberately short circuited. Holmes soon learns the one behind the murder is an old nemesis known to him only as "Moriarty".

Moriarty asks Holmes to find out who murdered a mechanic in Brooklyn. Despite Watson's protests, Holmes thinks this case will help him uncover Moriarty's true identity, but it will, in fact, lead Holmes to something much worse.

Holmes reconnects with Irene, his one true love that he thought had been taken from him by Moriarity. He tries to protect her as she recovers from her trauma but he soon learns that it isn't she that needs protection.

While recovering from his gun shot wounds, Holmes eschews painkillers while working on a case of a Greek shipping magnate - involving an assassination and currency manipulation - before his final showdown with Moriarty.

Holmes and Watson travel to London to help track down an old mentor and investigate an unsolved mystery.

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.

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. Tony Award Winner Steve Kazee guest stars.

When dominatrix friend of Sherlock's finds her client dead, Sherlock determines that he had been poisoned.

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.

Captain Gregson's team learns a bit about his personal life after his home is invaded. Holmes and Watson track the gunman.

Sherlock's brother, Mycroft, arrives in New York and enlists Holmes and Watson to help solve a case involving his former fiancee. Meanwhile, Sherlock has a difficult time accepting Mycroft and Joan's relationship.

When a young woman is murdered and it is discovered that she is a "kept woman", Holmes and Watson investigate her ties to a billionaire CEO.

Holmes and Watson uncover the identity of a serial killer whose case has gone cold and find themselves butting heads with the NYPD.

When an investigation goes horribly wrong, Sherlock must testify in an official police inquiry which jeopardizes his and Watson's future with the NYPD.

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

The kidnapping of a young girl leads Holmes and Watson to a familiar face from the past.

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. Featuring Peter Gerety and Paul Sorvino.

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.

Holmes and Watson must find the source of anthrax that may be used for a terrorist attack.

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.

With Watson kidnapped, the Holmes brothers are extorted to buy her back by acquiring something the gangsters greatly value. As the clock runs down on Watson's life, Sherlock is forced to work with his despised brother Mycroft.

Mycroft's handler at MI6 asks Sherlock to investigate the death of a mentally disturbed operative. Watson tries to cope with her feelings about the kidnapping, as well as Mycroft's deceptions.

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. Rhys Ifans returns as Mycroft Holmes.

Holmes returns to New York with a new apprentice and a renewed interest in working with the NYPD after being fired by London's MI6. Unfortunately, Joan, the NYPD's new go-to PI, must give her approval first.

When Holmes and Watson join forces on a double homicide, Sherlock's new apprentice, Kitty, threatens the investigation when she allows her jealousy of Sherlock and Joan's work rapport to override her better judgment.

Sherlock helps a math genius from his network of "Irregulars" experts after he stumbles upon a body while participating in a math puzzle competition. Meanwhile, Joan attempts to extend an olive branch after she learns about Kitty's past.

An A.I. computer is suspected for the murder of its creator; Sherlock and the team go to work to solve the case.

Sherlock and Kitty investigate after a man's severed hand is found in the street; Gregson gets in trouble with the brass and his daughter when he punches another cop; Sherlock discovers a manuscript that Watson has written about his cases.

Holmes and Watson search for a thief who committed murder to steal a rare map. Meanwhile, Watson becomes concerned with Sherlock's escalating interference into Kitty's burgeoning personal life.

A bored Sherlock forces his investigative services onto Joan, who is trying to locate a woman who has been missing for five years, and the only clue is the smell of nutmeg at the site of her disappearance. Meanwhile, Joan's bond with her long-distance boyfriend, Andrew, is tested when a man from her past reappears and asks for her help.

Holmes and Watson join forces with the NYPD after a police officer is murdered. Also, Sherlock searches for the creator of a "recovery blog" who is posting personal statements he has made in sobriety meetings.

When a nurse Watson used to work with asks for her help finding their missing acquaintance, the woman's trail leads Watson and Holmes to another person who has disappeared. Also, Sherlock struggles with his sobriety when he finds the recovery process monotonous.

While Kitty tries to find a runaway teen, Sherlock and Joan work a case in which the murder of a brilliant bioengineer looks to be at the hands of a drug cartel. Also, Joan makes a major life decision but worries it will impact Sherlock negatively, not knowing that Sherlock has big news of his own.

Watson starts her new job as an investigator for an insurance firm, but ends up joining forces on a case with Sherlock when a threat to Kitty emerges.

As Kitty begins to unravel due to the imminent threat to her safety, Sherlock and Joan intensify their efforts to help her. Also, the origin of Sherlock and Kitty's relationship is revealed.

Holmes and Watson are faced with a very large suspect pool when a debt collector is murdered; Andrew wants Watson to meet his father.

Sherlock and Detective Bell investigate the kidnapping of two zebras from the zoo.

Holmes and Watson follow a blood trail into the world of wrongful death compensation when they investigate a series of murders in which the killer leaves envelopes of cash on the victims. Also, Holmes makes a generous gesture towards Watson as she suffers through the aftermath of a personal crisis.

Holmes investigates himself when he becomes a suspect in a murder that took place during the height of his addiction; clues make Holmes question his innocence.

A murder victim turns out to have been instantly frozen at the time of death; Watson is forced to have an awkward conversation with her brother after learning he is having an affair.

A driver for a ride sharing company is intentionally run over by a city cab, Sherlock and Joan wonder if it's a case of professional jealousy. A romance Sherlock has with a longtime Irregular complicates when she makes a shocking request.

Holmes and Watson are drawn into an Internet war when a member of the everyone hacker group is murdered.

Holmes and Watson investigate the murder of a professional skeptic, a man who debunked paranormal, religious and scientific phenomenon for a living. The case becomes urgent when his homicide reveals a potential threat to homeland security. Also, Captain Gregson's daughter and fellow NYPD officer, Hannah (Liza J. Bennett), asks Watson for help with one of her cases.

Two New York City paramedics are shot and their ambulance with its patient is abducted by the murderer. Holmes and Watson join the manhunt to find out what happened and why. Holmes learns information about Alfredo, which strains their relationship.

When a judge is murdered, Holmes and Watson become involved in the interstate search to find the prime suspect, an escaped convict from a privatized prison. Also, when Holmes applies his deductive reasoning to Detective Bell's new relationship, the romance hits a rough patch.

A researcher - one of Sherlock's fellow beekeepers - who was investigating a deadly honeybee outbreak is killed; Capt. Gregson asks Watson for help with an unofficial investigation that helps him make a decision.

Holmes and Watson take on an investigation of a personal nature when Holmes' friend and former recovery sponsor, Alfredo, disappears under suspicious circumstances.

Sherlock faces the consequences of his actions, including the arrival of his father. While waiting for word from the DA, Holmes and Watson investigate a cold case at the behest of the lead suspect, who makes a request Holmes can't refuse.

Sherlock and Holmes consult with the FBI on a multiple homicide case involving a DARPA sponsored lab.

Sherlock and Watson are back working with the NYPD on a double homicide involving a doppelganger of the intended victim. Sherlock offers his consulting services to his father, to help him finish his business in New York.

When Holmes and Watson investigate the murder of a fertility lab technician, they discover the woman had a secret personal life that leads them to multiple suspects. Also, the tables are turned on Watson when she's investigated by an NYPD detective.

Sherlock and Joan investigate the murder of a struggling archaeologist who was seemingly killed for some vintage video games he unearthed.

Morland offers to act as one of his son's "Irregular" consultants so that he can lend Sherlock and Joan his considerable resources to help them solve a case.

The duo goes against a clever opponent, who forces Holmes to think out of the box. Meanwhile Watson's troubles with her father are brought into focus when he writes a book about her and Holmes.

Sherlock thinks Watson and Det. Bell are having an affair. A series of apparently connected events occur after a murder which forces the detective to question his own theory at every step.

A Russian billionaire is assassinated in New York and Holmes and Watson embark upon several instances of hacking and weaponory business. Meanwhile, a secret about Morland, Sherlock's father is revealed.

A social worker asks Holmes and Watson to investigate a private college, when she becomes convinced that they have murdered one of her colleagues.

When evidence at the morgue is destroyed, suspicion falls on emerging gangs. Holmes believes that identifying a Jane Doe will help him unlock the case, while Watson deals with the reappearance of an old adversary.

Sherlock is recruited to heist a computer from a violent meth dealing motorcycle gang. While a former suspect from a previous case asks Joan to run a background check on her new boss.

When a gathering of mushroom aficionados are found dead, Holmes and Watson must explore an array of botanists, biochemists, academics and stoners for a poisoner.

Holmes investigates the assassination attempt on his father while trying to solve the triple homicide of Chinese gangsters. A secret about Sherlock's mother is revealed.

When Watson runs into Captain Gregson and his secret girlfriend, a former NYPD officer, she inadvertently sets the couple's breakup in motion. Also, Holmes and Watson investigate the murder of a wealthy woman who left her considerable estate solely to a beloved dog.

At the urging of Morland's wealthy associate, Henry Baskerville (Tom Everett Scott), Holmes and Watson look into the death of his brother and discover that a witness saw the man chased to his death by a large, glowing animal too fantastic to be real. Sherlock considers intervening when the trauma from the bombing at the morgue negatively impacts ME Hawes' work.

When a vigilante dressed as a comic book hero is murdered, it's up to Holmes and Watson to find the man's true identity and locate his killer; Moreland tries to charm Watson into doing him a favor.

Holmes and Watson are called in to help locate a missing doctor. It is unclear at first whether he has gone into hiding or is a victim of foul play. Holmes and Fiona's relationship takes a new turn.

Holmes and Watson investigate a burglary at an illegal high stakes poker game held by Mycroft's ex girlfriend. Watson is suspicious of their employer.

Holmes and Watson investigate the murder of a young woman whose college selfie was turned into a piece of contemporary art. Watson tries to get closer to her half-sister.

Holmes and Watson investigate a double murder which is not what it first appears.

Sherlock's father, Morland (John Noble), becomes Sherlock and Joan's prime suspect in a murder investigation after one of his employees is killed under the guise of a robbery.

Sherlock's suspicions concerning Moriarty's handiwork turn out to be true and her evil successor is revealed. Morland's desire for vengeance causes Sherlock to consider just which brand of justice this new villain warrants.

Vikner's diabolical maneuvering to secure his position becomes known. Sherlock concocts a plan to unseat him only to unwittingly enable a power struggle the ends of which he could barely have believed possible.

Watson seeks help from a former patient to find a serial bomber.

When the leader of a local street gang abducts Holmes to compel him to find the person responsible for a hit on his men, Holmes and Watson get caught in the middle of an international hunt to recover a centuries old, priceless artifact. Also, Watson debates whether a personal favor Shinwell asks of her is outside her comfort zone.

Holmes learns a secret about Captain Gregson's girlfriend when she hires him for a case she wants kept off of Gregson's radar. Also, Holmes and Watson join the NYPD's search for an abducted woman.

When the city commends the work of Captain Gregson's unit, Gregson pushes for Holmes and Watson to be included; a financial analyst is murdered.

Holmes and Watson have plenty of suspects when they investigate the murder of a man who led a secret life as a vigilante, “catfishing” sexual predators on dating sites and publicly shaming them. When Shinwell’s criminal record prevents him from finding a full-time job, Holmes disagrees with Watson’s plan to help him.

Holmes and Watson investigate a mass murder when a chef and his patrons are poisoned with snake venom. Also, Detective Bell's crush on a work colleague makes Holmes realize his and Fiona's relationship is at an important crossroads.

Holmes and Watson search for two murderers after a base jumper is shot out of the sky by one killer, and has his parachute sabotaged by another. Also, after Joan's sister, Lin (Samantha Quan), thinks she sees Shinwell with a member of his old gang, Joan takes drastic measures to make sure he won't be drawn back into a life of crime.

Joan worries Sherlock's sobriety is at risk when she learns he has been lying to her about attending recovery meetings.

When Shinwell is framed for a gang killing, Holmes and Watson have three days to catch the real killer before Shinwell is sent back to jail.

Watson is implicated in a DEA investigation into doctors writing illegal prescriptions, so she and Holmes look for the culprit using her medical license to sell drugs.

Holmes and Watson race to find a woman who's been held captive for years before the kidnapper takes drastic steps to avoid being caught. Also, Watson becomes frustrated when Shinwell refuses to focus on his informant training with her and Holmes.

Two watchmen chase a creepy clown into the woods, seconds after losing him they stumble upon his corpse buried in a shallow grave.

Watson is held at gunpoint by father whilst Sherlock is forced to investigate an old assault case of the son. It was botched by the original investigation.

A former professional eSports video game player dies after he's assaulted during a live video stream; Shinwell asks Joan for advice when his daughter asks to see him for the first time in five years.

Holmes' former protégé, Kitty Winter, returns to New York after a three-year absence to warn him that a killer is eliminating everybody involved with a case they worked on.

Joan and Kitty try to prove that a string of murders, stemming from an old case Sherlock and Kitty solved in London, is connected to an international government conspiracy with the Defense Intelligence Agency at its center. Also, Sherlock and Kitty's relationship is strained after she shares life-changing news, on the conclusion of a two-part.

The police call in Holmes and Watson to consult on a homicide "heard" by a cutting edge gunshot detection system when they can't find any tangible evidence that a crime was committed. Also, Sherlock and Joan become suspicious of Shinwell when he's the target of a drive-by shooting that reveals a connection between him and an unsolved murder.

Sherlock and Joan investigate a case which involves a legendary pirate and his rumored treasure. All while the two struggle with their relationship with Shinwell.

Holmes and Watson investigate the murder of a man Sherlock considered one of New York's worst private investigators.

Holmes and Watson investigate the murder of a magician performing a classic stunt. Watson believes Bell is being targeted by his new girlfriend's ex-husband.

Watson and Holmes search for the suspect believed to be behind both the assault on Chantal, and her ex-husband's staged suicide; Bell fights the urge to seek his own brand of justice for Chantal; Sherlock makes a heartbreaking realization about Bell.

After a reality show contestant is killed, another competitor becomes the leading suspect. He's a former war criminal who may be the most skilled killer that Holmes and Watson have ever pursued. Shinwell reappears and asks Joan for a favor.

A murder investigation puts Holmes and Watson in the crosshairs of one of NYC's deadliest gangs. A mysterious woman causes Holmes to act erratically.

Holmes and Watson pursue an elusive criminal as a gang war erupts in New York City. While the NYPD works to contain the violence, the two investigate the murder that appears to have ignited the city-wide conflict and discover that a familiar face is pulling the strings.

As Holmes confronts a medical diagnosis that threatens both his career and sobriety, he meets Michael, a man who credits Sherlock for helping him conquer his own addiction. Also, Holmes and Watson are hired by a reformed party girl heiress to find her missing partner in a years-old sex tape that has just leaked online.

Watson and her half sister, Lin, have conflicting reactions when their estranged biological father dies. Also, Holmes and Watson find themselves on the hunt for a stolen plutonium shipment they fear will be used to make a dirty bomb after a Department of Energy inspector is killed with a lightning gun.

Holmes and Watson enter the world of rare antiquities when they investigate a case in which victim was killed during a Revolutionary War reenactment. Also, as Holmes grows frustrated with the length of his cognitive recovery, he finds solace in his growing friendship with Michael.

Watson considers making a major life change after reading her own therapy file while Holmes and she investigate the murder of her former psychologist.

Sherlock finds himself in possession of a severed head and a temporary case of amnesia. Watson helps Holmes retrace his footsteps to put the pieces together.

Holmes and Watson deal with nuclear security when a former Japanese crime syndicate member is found dead. Captain Gregson is shook when he hears a confession from a family member.

Sherlock faces serious problems hindering his recovery as he and Watson track down a serial killer hunting in Holmes' circle.

Holmes and Watson's search for the killer of a woman found encased in cement takes them inside the clean technology industry. Watson takes a giant leap forward regarding her interest in adoption.

Holmes' former sobriety sponsor asks for help with an illegal endeavor in order to save his brother. Holmes and Watson investigate the poisoning of a biology professor who was working on a secret project.

Sherlock and his father attempt to repair their strained relationship upon learning of a death within their family. Holmes and Watson discover a link between their latest case and the world of Egyptian antiquities.

Holmes engages an old foe to protect his father, Morland. Holmes and Watson search for a killer connected to the tobacco industry when a lawyer, who was reviewing a major cigarette distributor's finances, is murdered.

Detective Bell considers leaving the NYPD after he is recommended for a once-in-a-lifetime career opportunity; Holmes and Watson investigate the disappearance of a young woman who led a double life as a financial dominatrix.

Holmes and Watson investigate the death of a relocation expert who was hiding a secret career. Watson suffers a setback in her attempts to adopt a child.

It's a race against time for Holmes and Watson when Bell becomes a victim of a bioterrorism attack at the precinct. During the quarantine, Gregson and Bell suspect they are trapped inside with the terrorist.

Holmes and Watson's investigation into the murder of a religion professor puts them on the hunt for a killer connected to the occult. Also, Holmes and Watson curate a list of potential replacements for Detective Bell when it looks likely the officer will be asked to join the U.S. Marshal Service.

Holmes and Watson discover that the murder of a robotics engineer may be connected to his secret research in the area of real-life teleportation.

The duo suspects a murdered zoologist was killed because of his numerous affairs or his trailblazing research; Holmes finds himself the victim of identity theft after his medical records are stolen.

Holmes and Watson are brought a case of a deceased man who wrote predictive obituaries, including Sherlock's, which are beginning to come true.

Holmes and Watson race to locate a missing woman; Holmes' friend becomes the prime suspect in the woman's disappearance.

A new victim appears and the game is on between Sherlock and Michael. But not all is as it seems.

Holmes works to find Rowan's murderer before Watson is charged with the crime.

Holmes and Watson's new careers as consultants for Scotland Yard in London take them inside the tabloid journalism industry when a model is the victim of an acid attack.

Holmes and Watson try to work a stateside investigation from London when someone close to them is gravely wounded by an unknown perpetrator in the U.S.; Holmes' stateside legal trouble threatens to derail their efforts.

Holmes takes extreme measures to gain legal re-entry into the U.S.; Watson helps the NYPD investigate a murder at a storage facility that caters to wealthy clients with items they want hidden from customs agents.

After an explosion at a traffic stop, Holmes and Watson must determine whether the attack was a terrorist attack; Holmes and Watson suspect there is more for them to discover regarding the recent attack.

Holmes and Watson must find the connection between three unrelated murders. Billionaire Odin Reichenbach suspects he is being threatened by someone in his own company and hires Holmes and Watson to find the perpetrator.

Tech billionaire Odin Reichenbach presents Holmes and Watson with an extraordinary offer to help him with a program that can predict future crimes. Also, Holmes and Watson assist Bell when he tries to prevent a future crime of his own, as he races to locate a fellow NYPD officer planning a sniper shooting.

Holmes and Watson investigate the murder of a criminal who made his living by stealing from other criminals. Captain Gregson resumes leadership of the precinct, and suspects his interim replacement, Captain Dwyer, is responsible for one of his best detective's suspicious departure.

Cassie Lenue seeks the help of Holmes and Watson in solving a murder but they believe she has an ulterior motive.

In the wake of a sculptor's murder in New York, Holmes and Watson must determine whether a long dormant serial killer has resurfaced; Watson suspects Holmes is keeping something from her.

Holmes and Watson's foe, Odin Reichenbach, asks them to test his new crime prevention system; tasked with investigating someone the program predicts will commit a crime, they worry Odin will take drastic action.

Holmes and Watson reluctantly enlist the help of Holmes's father to publicize the crime prevention system of Odin Reichenbach.

Tech billionaire Odin Reichenbach inadvertently provides Holmes and Watson with a lead that could give them evidence that brings him to justice.

In the series' finale, Holmes and Watson battle with tech billionaire Odin Reichenbach and receive word of their old enemy and Sherlock's former love, Jamie Moriarty.

Joan and Kitty try to prove that a string of murders, stemming from an old case Sherlock and Kitty solved in London, is connected to an international government conspiracy with the Defense Intelligence Agency at its center. Also, Sherlock and Kitty's relationship is strained after she shares life-changing news, on the conclusion of a two-part.

Cassie Lenue seeks the help of Holmes and Watson in solving a murder but they believe she has an ulterior motive.

Holmes' former sobriety sponsor asks for help with an illegal endeavor in order to save his brother. Holmes and Watson investigate the poisoning of a biology professor who was working on a secret project.

Sherlock identifies new murders as the modus operandi of Wade Crewes, the serial killer whose arrest made Captain Thomas Gregson's NYPD career. Their friendship is strained by necessary questions of whether it's a copycat, a former accomplice, or even the real serial killer. Worse yet, what if Crewes' initial conviction rested on a trumped-up investigation, notably by Gregson's partner at the time.

A man connected to the classification of a valuable building as a landmark trust dies when his pacemaker is deliberately short circuited. Holmes soon learns the one behind the murder is an old nemesis known to him only as "Moriarty".

Tech billionaire Odin Reichenbach inadvertently provides Holmes and Watson with a lead that could give them evidence that brings him to justice.

At the urging of Morland's wealthy associate, Henry Baskerville (Tom Everett Scott), Holmes and Watson look into the death of his brother and discover that a witness saw the man chased to his death by a large, glowing animal too fantastic to be real. Sherlock considers intervening when the trauma from the bombing at the morgue negatively impacts ME Hawes' work.

Holmes and Watson are called in to help locate a missing doctor. It is unclear at first whether he has gone into hiding or is a victim of foul play. Holmes and Fiona's relationship takes a new turn.

The duo suspects a murdered zoologist was killed because of his numerous affairs or his trailblazing research; Holmes finds himself the victim of identity theft after his medical records are stolen.

As Kitty begins to unravel due to the imminent threat to her safety, Sherlock and Joan intensify their efforts to help her. Also, the origin of Sherlock and Kitty's relationship is revealed.