Holmes is diagnosed with post-concussion syndrome following Shinwell's attack. After a meeting, Michael Rowan credits Sherlock with helping him through his addictions. Tabloid celebrity Sophie Bishop hires Sherlock and Joan to find her missing ex-lover, Sammy Olivetti after the release of their sex tape. Sherlock is bribed $5 million to drop the case; the transaction is traced to an offshore account. After recognizing the coffee shop where the video was uploaded, Sophie is found slain. Her husba
Sherlock and Joan investigate Rohan Giri's death by lightning strike, discovering that he was murdered by a LIPC electrolaser. The weapon's financier, Mr. Kwan, confesses, claiming he only wanted to incapacitate Giri to buy time. However, black market plutonium he smuggled to power the laser was stolen, possibly to build a dirty bomb. National Nuclear Security Administration Agent Don Kohler takes charge of the investigation. An 88 bomb maker is found murdered in New Jersey, where residual radia
Sherlock and Joan discover the world of rare antiquities after the death of George Nix during a Revolutionary War reenactment. He was the owner of a gym franchise with a lot of angry franchisees. His sole heir, a daughter set to inherit $5 million, lives in a commune preaching the evils of capitalism. Sherlock meets Michael after his neurologist raises his dose and his friend recommends trusting Joan and the others in his life. George's house is burned down and then looted by a firefighter, but
Sherlock and Joan investigate the death of Joan's former therapist, Candice Reed. When they question Alfonse Kapoor, one of her patients, he attempts suicide. At the hospital, Sherlock meets Alfonse's boss, Sydney Place, who was also Candice's landlord. He throws suspicion on her partner, Dr. Leo Demopoulos. In Dr. Reed's office, Sherlock and Joan find a listening device. They deduce that Place put it there to listen in on Kapoor's conversations with Dr. Reed. The device recorded the murder, but
Sherlock turns up with a man's severed, embalmed head and no memory of how he got it. They discover that the victim, a tissue donor, might have possibly been infected with something and murdered to cover it up. Meanwhile, Sherlock comes clean to Captain Gregson about his post-concussion syndrome. Furious, Gregson orders Sherlock off duty until cleared by the doctor. They learn that two people who received donations from the original victim, Eric Russo, have been murdered. It turns out that Russo
A Japanese former Yakuza is murdered. Sherlock and Joan find out that he wore a prosthetic finger, concealing a thumb drive. Another Yakuza tells them that the victim had robbed a place and, when Sherlock and Joan investigate, they discover that it was a military facility and part of the nuclear missile control system. The victim had broken into it as part of an assessment; he had become a security consultant. The military was updating their system, so their new operating system could be on the
Sherlock's condition worsens as he disregards his health in an attempt to stop a serial killer before he strikes again. Sherlock deduces that the serial killer has dressed the victim in clothes from several other women, who he presumes are other victims. With Joan and Bell's help, Sherlock is able to identify the owner of a pair of earrings dressed on the victim as belonging to Polly Keller, the woman whose disappearance Michael asked Sherlock to investigate. After meeting Michael and discussing
Sherlock returns to the brownstone. There, he is surprised by the presence of a pregnant woman that Joan has as her house guest and whose baby Joan wishes to adopt. Soon after, Sherlock and Joan are called to investigate the murder of a woman whose body parts have been found in concrete slabs. Upon investigating, Sherlock and Joan find out that the murdered woman had discovered that a construction company was siphoning sand from the Hudson River, which was going to lead to a bridge's collapse. T
Sherlock and Joan investigate the thallium poisoning murder of a biology professor, who was trying to double rat life spans to win a five million dollar award from Dudley Becket's Galahad Institute, with the ultimate goal of human immortality. Dudley's son Hunter is implicated after they learn that his father has spent much of their money on the Institute, endangering his trust fund. Meanwhile, Alfredo asks Sherlock for help robbing $100,000 from a car retailer who refused to pay Alfredo what he
Morland visits Sherlock to discuss Mycroft's recent death and Morland's re-writing of his will, while Sherlock expresses his wish to let go of old grudges. Sherlock and Joan investigate the murder of Mischa Farrell whose corpse was being prepared as an ancient Egyptian mummy, a forgery of Sobekneferu. They discover that Mischa was planning on exposing Van Faux, an ingenious forger of 17th century Dutch paintings and suspect he may have wanted to kill her to avoid being exposed. They learn that t
Kress & Howell lawyer Gilbert Pham is murdered the day before a big merger between Washburn Tobacco and Summit-Stow Distributors. Sherlock and Joan suspect Pham was silenced over unaccounted finances. They discover Tim Darsha is an ATF undercover agent investigating tobacco smugglers. Joan enlists The Nose to determine smuggling routes. From surveillance video, it's evident Darsha and Agent Nick Evaneer are skimming proceeds into their own off-books slush fund. Darsha and Evaneer have a shoot-ou
Joan's sister sends her a client who is looking for a missing woman. After much detective grunt work, Joan finds the apartment of the missing woman and realizes that she has been kidnapped. Sherlock and Joan then track down several leads, eventually discovering the abducted woman's boyfriend, a blacksmith, has also been abducted. Then, by piecing together evidence, Sherlock and Bell realize that the abducted couple are being forced to make illegal guns for a Latino gang. The kidnapped woman's br
Holmes and Watson investigate the death of a relocation expert, Leland Frisk, who was poisoned by wine laced with cyanide. Frisk had a secret career as a contract killer. Talking to his assistant Sherry Lennox, they identify businessman Cal Medina, as a suspect and his fingerprint is found on one of the wine glasses, but he has a popular politician vouch for his alibi. Sherlock and Watson set out to identify for what murder Medina hired Frisk in the first place. They identify the original victim
There is a biological attack at the precinct. Detective Bell is exposed to an unknown substance and quickly deduces that the perpetrator is one of the people locked inside the quarantined precinct. Soon, two civilians that were supposed to give witness statements start to show symptoms. Sherlock and Watson figure out that photos of the precinct on the phone that was used to set off the device were taken during a time only cops were at the precinct. They dig up some things from a suspect cop's pa
A woman, anxious about her chicken Irma, calls cops who find Religion Prof. Gabriel Rojas' headless corpse, stuffed with a chicken's head. Councilman Ledesma says Gabriel was a Police/FBI occult expert, mentioning a Palo Mayombe case involving a crypt's stolen skull, but Cerio Cristobal, imprisoned, wasn't devout; it was a prank. A Guatemalan Rum bottle, thrown through their window, leads to Father Vega, who explains unionizing Champerico workers are targeted by paramilitary group Movimiento Arm
Bruce Deramore is murdered; his PerfectMate Robotics model 10 Skyler sex doll "witnessed" it. Bell experiences uncanny valley "discomfort." Alden Lubbock unlocks the robot's encrypted memory storage. Bruce's ex-girlfriend, Catholic school teacher Nina Hudgins, is "mortified" that Skyler looks like her. SingularityCon's panelist Evan Kowalski believes they killed Bruce over top-secret government "teleportation" plans; scan-faxing molecules via 3D printer. Dr. Klaus Ziegler demonstrates, "transpor
A worm harvester unearths body parts from Dr. William "Worm Hunter" Velnik, Millerton University's Senior Professor of Invertebrate Zoology. Zeke admits doctoring security footage, concealing Velnik's "hook-ups," including Tara Keane, Professor Sepi Chamanara, and Becca Mainzer, whose husband Donnie shot him, but Velnik wore hoodie-esque body armor; "the thinnest ballistic cloth in the world," worth millions. Jon of Hoyt Amor Solutions paid Velnik $200,000 to produce worm-insect fiber in "commer
David Horowitz claims his schizophrenic brother Norman died after predicting future obituaries, and Sherlock is next. David and his wife Luz explain, Norman believed in simulation theory. Joan discovers Norman corresponded with Henry Baskerville, who provides a simulation symposium attendees list. Joan tries to solve Christina Dawson's suicide. Her husband Jonathan says she didn't leave a note; a neighbor's security video, shows her jumping. Channel 10 News reporter Deborah Garrisi breaks the st
Harlan Emple wants to hire Sherlock and Watson because his mathematics doctoral student, Lily Zavala, has missed the oral defense of her thesis. He becomes the prime suspect in her disappearance; he was attracted to her, but had not told her because university rules forbid teacher-student relationships. Her parents receive a ransom call. The trail leads to the body of ex-con Jimmy Cantrell, one of the kidnappers. Lily eventually escapes. She was being forced to change the mathematical calculatio
At Saint Olafs Church, a police detective finds Rachel Garner strangled with rubber tubing used by heroin addicts; Sherlock believes serial killer Michael Rowan returned to NYC. FBI Special Agent Mallick heads the investigation. Michael appears at Major Cases to "help" (i.e., taunt) Sherlock, but doesn't admit to anything. Everyone hackers discover William Bazemore withdrew $9,900; Joan suspects he bankrolled Michael's flight from justice. From Michael's five-year sobriety coin online purchase,
FBI Special Agent Mallick accuses Joan of killing Michael Rowan, playing a phone recording of Michael calling Joan's name before he was beaten to death. Joan hires lawyer Angela Donnely to advise her. Gregson bars Sherlock from investigating, saying be patient. From Sherlock's morgue photos of Michael's corpse, Joan recognizes Vietnam war-era combat medic stitches. Sherlock confronts fellow addict, Denny Mulgrew, who admits treating Michael. With luminol, they find the crime scene cleaned by ble
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