Season 4

73 :04x01 - The Past Is Parent

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74 :04x02 - Evidence of Things Not Seen

When Morland offers to use his influence to have Sherlock and Joan reinstated as consultants to the NYPD, Sherlock's mistrust of his father makes him question his motivation to help. Also, with no work offers coming in, Watson wrangles a gig with the FBI investigating a triple homicide in a top-secret research lab

Source: CBS

75 :04x03 - Tag, You're Me

When Sherlock finds himself distracted by his father's ongoing presence in New York City, he offers to help Morland resolve a work issue in exchange for his prompt departure home. Also, Holmes and Watson's investigation into the double murder of two men who looked alike leads them into the world of facial recognition technology

Source: CBS

76 :04x04 - All My Exes Live in Essex

When Holmes and Watson investigate the murder of a fertility lab technician, they discover the woman had a secret personal life that leads them to multiple suspects. Also, the tables are turned on Watson when she's investigated by an NYPD detective

Source: CBS

77 :04x05 - The Games Underfoot

When an archeologist is murdered, Holmes and Watson believe the man may have been killed for what he discovered during his last excavation in a local landfill. Also, Sherlock's relationship with Alfredo, his friend and former sobriety sponsor, hits a rough patch

78 :04x06 - The Cost of Doing Business

Morland offers to act as one of his son's "Irregular" consultants so that he can lend Sherlock and Joan his considerable resources to help them solve a case

Source: CBS

79 :04x07 - Miss Taken

When Watson's stepfather writes a crime novel based on her work with Holmes without her knowledge, an underlying issue in their relationship is revealed. Also, as Holmes and Watson investigate a retired FBI agent's murder, they discover the man's death is connected to an unsolved case from the victim's career

Source: CBS

80 :04x08 - A Burden of Blood

Holmes and Watson investigate a homicide in which the victim was murdered in a manner reminiscent of the crimes of an infamous, and already incarcerated, serial killer. Also, Sherlock and Joan tutor Detective Bell for a police sergeant's exam that would lead to a promotion and a post at another precinct

Source: CBS

81 :04x09 - Murder Ex Machina

Holmes and Watson search for a computer hacker responsible for three murders, including the death of a Russian billionaire who was visiting New York City. Also, Joan is surprised to receive a solo dinner invitation from Sherlock's father

Source: CBS

82 :04x10 - Alma Matters

Holmes and Watson find out that Morland has been keeping a secret that leaves their safety in doubt. A couple of murders are connected to a for-profit college that uses illegal recruitment practices.

83 :04x11 - Down Where the Dead Delight

After a bomb is set off in the morgue, Watson and Holmes need to try and find a killer without any physical evidence to help them.

84 :04x12 - A View With a Room

Holmes is requested to organize a perfect heist in a drug-dealing biker gang's heavily armed and virtually impenetrable compound. Watson finds something out about Holmes.

85 :04x13 - A Study in Charlotte

A botany professor and some students are murdered by some poisonous mushrooms. Joan finds something out about her neighbor.

86 :04x14 - Who Is That Masked Man

Sherlock's investigates following an attempt on Morland's life and it strains their relationship. The identity of Sherlock's mother is revealed whilst the the murders of three gang members lead to a surprising suspect.

87 :04x15 - Up to Heaven and Down to Hell

After Watson bumps into Gregson and his girlfriend, she manages to cause problems in their relationship. A woman who has left her estate to a beloved dog is killed.

88 :04x16 - Hounded

Holmes and Watson take a look into the death of a wealthy businessman who a witness insists was chased down by a huge, glowing animal.

89 :04x17 - You've Got Me, Who's Got You?

After a vigilante dressed up as a comic book hero is murdered, Holmes and Watson need to find the man's true identity and find his killer.
Classification: Scripted
Genre: Crime | Drama | Mystery
Status: Returning Series
Network: CBS ( USA)
Airs: Thursdays at 10:00 pm
Runtime: 60 Minutes
Premiere: September 27, 2012
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