Season 03 Episode 01 – “Enough Nemesis to Go Around”
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.
Season 03 Episode 02 – “The Five Orange Pipz”
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 03 Episode 03 – “Just a Regular Irregular”
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, Holmes reaches out to Kitty, after she learns about Kitty’s past.
Season 03 Episode 04 – “Bella”
Holmes investigates when a groundbreaking artificial intelligence software program is stolen, but he enlists Joan’s help after he becomes more interested in disproving the computer’s abilities than in tracking down the thief. Meanwhile, Joan confronts Sherlock about his motives when she learns he has contacted her boyfriend without her knowledge.
Season 03 Episode 05 – “Rip Off”
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.
Season 03 Episode 06 – “Teri Pericolosa”
Holmes and Watson search for a thief who committed murder to steal a rare map. Meanwhile, Joan becomes concerned with Sherlock’s escalating interference into Kitty’s personal life.
Season 03 Episode 07 – “The Adventure of the Nutmeg Concoction”
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.
Season 03 Episode 08 – “End of Watch”
Holmes and Watson join the NYPD manhunt for a cop killer. Meanwhile, Sherlock searches for the creator of a “recovery bag” who is posting personal statements Holmes made in sobriety meetings.
Season 03 Episode 09 – “The Eternity Injection”
Watson and Holmes search for a missing nurse Joan used to work with. The investigation leads them to another person who recently disappeared. Meanwhile, Sherlock struggles with sobriety when he finds the recovery process monotonous.
Season 03 Episode 10 – “Seed Money”
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.
Season 03 Episode 11 – “The Illustrious Client”
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.
Season 03 Episode 12 – “The One That Got Away”
Holmes and Watson try to help Kitty when she begins to unravel due to the imminent threat to her safety. Meanwhile, the origin of Sherlock and Kitty’s relationship is revealed.
Season 03 Episode 13 – “Hemlock”
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.