Holmes and Watson investigate the murder of a professional skeptic who debunked paranormal, religious and scientific phenomenon for a living. The probe uncovers a potential threat to homeland security. Meanwhile, Gregson's daughter asks Joan for help with a case.moreless
A driver for a ridesharing company is killed when he is intentionally run over by a city cab. Holmes and Watson investigate and wonder if the death is a case of professional jealousy. Meanwhile, a casual romance Sherlock has with one of his longtime "irregular" consultants gets complicated when the woman makes a shocking request.moreless
An unforeseen incident puts Watson in contact with crime boss Elana March. Holmes signs up Marcus to help him solve a theft at the local zoo.
A debt collector is murdered, and Holmes and Watson try to narrow down the suspect pool from thousands of consumers who owed the victim money. Meanwhile, Joan's relationship with Andrew progresses when he asks her to meet his father.moreless
Part 2 of 2. Sherlock and Joan increase their efforts when Kitty begins to unravel due to the imminent threat to her safety. The origin of Sherlock and Kitty’s relationship is revealed.
Part 1 of 2. Watson begins her new job as an in-house investigator for an insurance firm, but her attention shifts when she joins Holmes to eliminate an imminent threat to Kitty.
Boyd plans a daring heist.. Meanwhile, Raylan tries to turn one of Boyd's old allies against him.
Watson and Holmes investigate the murder of a bioengineer whose death may be linked to a drug cartel. Meanwhile, Kitty searches for a runaway teen; and Joan makes a major life decision but worries it will have a negative impact on Sherlock.moreless
Watson joins Holmes and Kitty to search for a missing nurse she used to work with. The investigation leads them to another person who recently disappeared.
When an NYPD officer is murdered, Holmes and Watson join the investigation. Sherlock looks for the person posting his personal statements made in sobriety meetings on a "recovery blog".
A bored Holmes forces his investigative services onto Watson when she tries to locate a woman who has been missing for five years. The only clue is the smell of nutmeg at the site of her disappearance. Meanwhile, Joan's bond with her long-distance boyfriend is tested when a man from her past reappears and asks for her help.moreless
Holmes and Kitty investigate the murder of a postal store owner whose death is connected to the illegal diamond trade. Meanwhile, Gregson's career is placed in jeopardy when he hits a fellow NYPD officer.moreless
Sherlock takes on the case of a stolen artificial intelligence software program, but seeks out Joan when he'd rather disprove the computer's abilities than find the thief. Joan meets Sherlock head-on when she finds out he's met with Andrew without telling her.moreless
A math genius, who is part of Sherlock's network of "irregulars" experts, stumbles upon a body while participating in a math puzzle competition. Meanwhile, Joan reaches out to Kitty, after she learns about Kitty's past.moreless
Holmes and Watson join forces to investigate a double homicide, but Kitty gets jealous of their rapport and allows it to override her better judgment in the case.
Season 3 begins with Holmes returning to New York City 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 private investigator, must give her approval first before Sherlock can resume consulting for the department.moreless
A TV star is murdered in his dressing room, and the investigation plunges Carrie and Al into the disturbing world of celebrity obsession.
Season 3 ends with Carrie being unable to utilize her perfect memory after an assassin slips her a potentially fatal dose of poison that attacks her brain. Al and the team desperately search for an antidote.moreless
Carrie and Al investigate the murder of a high-end matchmaking service employee and discover the victim had many secrets. As they uncover each one, the suspect list grows longer.