Robert Capron

When a groundbreaking artificial intelligence software program is stolen, Sherlock agrees to take on the case, but enlists Joan's assistance in solving it when he becomes more interested in disproving the computer's abilities than finding the thief. Meanwhile, Joan confronts Sherlock about his motives after she learns he has been in direct contact with her boyfriend, Andrew, without her knowledge.

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.

When a nurse Watson used to work with asks for her help finding their missing acquaintance, the woman's trail leads Watson and Holmes to another person who has disappeared. Also, Sherlock struggles with his sobriety when he finds the recovery process monotonous.

When the Hecks attend a new church, Frankie is inspired by the pastor's sermon about getting one's business in life completed before death rears its ugly head. So she makes it her mission to ensure that her family puts it into practice. To that end, Mike wants to thank his dad for being there for him and his brother after their mom died, Sue starts up her own babysitting service, and Brick thinks a new bed will meet the requirement, while Axl believes that helping Brick get his new bed will fulfill his. But Frankie finds it difficult to figure out what it is that she should be doing to fulfill her own life's destiny.

Holmes and Watson investigate the murder of a professional skeptic, a man who debunked paranormal, religious and scientific phenomenon for a living. The case becomes urgent when his homicide reveals a potential threat to homeland security. Also, Captain Gregson's daughter and fellow NYPD officer, Hannah (Liza J. Bennett), asks Watson for help with one of her cases.