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.

When a groundbreaking artificial intelligence software program is stolen, Sherlock agrees to take on the case, but enlists Joan's assistance in solving it when he becomes more interested in disproving the computer's abilities than finding the thief. Meanwhile, Joan confronts Sherlock about his motives after she learns he has been in direct contact with her boyfriend, Andrew, without her knowledge.

A man's hand is found in the street. Sherlock and his new protege, Kitty, investigate to find out where the rest of his body is. Meanwhile, Sherlock discovers that an old laptop he loaned out to Watson contains evidence that she has written a book about him. Written by schuchat

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. Mamie Gummer guest stars.

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.

Sherlock is called in to help with the murder of a cop. When they get there Sherlock notices that the cop's gun is a toy. Watson goes to see the man's wife who says that her husband became addicted to pain killers and would steal anything to pay for them. She threw him out and before he was killed she says he claims to be clean. They deduce that he probably offered his gun as payment for the pills and that he had access to the armory where the department's gun are kept and was taking guns from there to pay for his pills. They assume that if he kicked his habit, he stopped stealing guns and told the one he gave them to that he was done. So they think that's why he was killed. But later another cop was killed with the same gun. Written by rcs0411@yahoo.com

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.

Sherlock is bored and lonely after Kitty left. A woman wants him to prove her husband's infidelity which normally doesn't do but he decides to do it. He asks Watson to accompany him and discovers that the man was let go at his job but told his wife he's still working. And someone at the office pretends to that he is still there when someone calls him. They learn the man started a debt collection business. They go to his office and they find evidence that he may have been killed. So they work to try and find out who wanted him dead. Written by rcs0411@yahoo.com

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.

Gregson calls Sherlock to come to the station and he meets with a couple of detectives who want his insight in a murder. But when they keep pestering him if he knows the victim, he realizes he's a suspect. They produce evidence that clearly shows he and the victim's path may have crossed. Thing is he was still an addict at the time and he doesn't remember. He turns to his former dealer for help but he's not much help. Written by rcs0411@yahoo.com

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. Written by DJAMBRITT

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.

Holmes and Watson look into the death of a member of Holmes' online beekeeping community who was a researcher looking into a deadly Northeast honey bee outbreak. During the investigation, they meet Tara Parker, a brilliant entomologist, academic and the leader of New York's beekeeping society. Also, Captain Gregson enlists Watson's services in an off-book investigation that helps him make a life-changing decision.

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