Homes and Watson get a look into Captain Gregson's private life when they investigate after masked men invade the Captain's home.
When Holmes and Watson discover an assassin's body, they must delve through the mob world for an answer. Watson helps a friend find the man of her dreams.
As Holmes and Watson investigate the murder of a financial consulting company's CEO, a mysterious woman from Holmes' past surfaces as a suspect.
Watson and Holmes search for the civil contractor responsible for leaking classified information but soon find themselves targeted by cyber activists. Joan decides to sign up at an online dating service.
Holmes and Watson investigate the murder of a well-respected mathematician and look into the guarded equation he was trying to decipher. Watson is at a loss when a former patient's son asks her for a loan.moreless
Holmes and Watson head to London for an unsolved mystery investigation and to look up his former mentor, Gareth Lestrade. Sherlock joins up with his estranged brother, Mycroft, who discloses some secrets.
A drug deal gone bad results in two deaths and a wounded accomplice. When Danny gets to the hospital Linda won't allow him to question the suspect until after surgery. A battle ensues between Danny and Linda when the suspect dies in surgery.moreless
While trying to predict the next move of erratic criminal Martin Ennis, Sherlock is forced to work with an FBI profiler. The same profiler who wrote an acclaimed book about the notorious criminal. Elsewhere, Watson faces eviction from her apartment.moreless
A British criminal with strong ties to Sherlock's past has shown up in New York. Watson isn't sure about whether to take on a new client.
A stabbing death has Danny investigating a voodoo community. Garrett discusses a dark secret with Frank. Jack and Sean head out with Erin and Nicky for some trick or treating.
When two separate murder victims are found to be part of a group charged with gang rape, Danny considers the possibility that the same person killed them both. Erin faces off in court against her ex-husband Jack Boyle.moreless
After family is robbed and beaten and the assailant is shot and killed, the Reagans discuss how far they'd go to protect their family. Frank is conflicted with charges brought against a girl arrested at a rally when her identity is revealed.moreless
An island off the coast of California holds clues to a murdered woman. Rigsby worries that because he has a new girlfriend, Van Pelt will feel uncomfortable around him.
Internal Affairs starts an investigation after Danny accidentally shoots a cop. The big question they look into is his personal state of mind at the time of the shooting.