The parents try to find a solution to PRIDE’s problem, and the kids grapple with a new discovery that yields more questions than answers.

Monk obsesses about a woman he bumped into on the street and the resulting insomnia causes him to witness a crime that apparently didn't occur.

Cole and Murtaugh look back on past mistakes as Leo Getz returns as the attorney on their latest case.

Reese finds himself captivated by their latest Person of Interest, a beautiful, shrewd and remarkably resourceful woman adept at problem solving.

Sanchez becomes a person of interest in a murder investigation when his mother's home caregiver is found dead hours after getting in a fight with Sanchez.

Intelligence hunts down the man responsible for the high-rise fire and the case gets personal for Halstead.

Agent Reynolds refuses to testify in an undercover case from his past because it may reveal that he killed a man during the operation, but Dr. Lightman tries to come to his defense and keep him out of harm's way.

Harry and Fergus travel to the convent of a silent order of nuns after an old friend asks Harry to investigate a suspicious suicide, believing foul play is afoot. Elsewhere, a familiar face provides a very welcome surprise.

Reese finds himself captivated by their latest Person of Interest, a beautiful, shrewd and remarkably resourceful woman adept at problem solving.

Monk obsesses about a woman he bumped into on the street and the resulting insomnia causes him to witness a crime that apparently didn't occur.

Intelligence hunts down the man responsible for the high-rise fire and the case gets personal for Halstead.

Agent Reynolds refuses to testify in an undercover case from his past because it may reveal that he killed a man during the operation, but Dr. Lightman tries to come to his defense and keep him out of harm's way.

Cole and Murtaugh look back on past mistakes as Leo Getz returns as the attorney on their latest case.

After their not-so-fearless leader is taken, our kids spring into action. Alex discovers long-buried secrets about his dad, as the kids uncover new truths about themselves.

A fun day at the races for Harry and Fergus ends in tragedy when a racehorse throws a jockey from the saddle. Harry B discovers the horse was sabotaged and insists the owner, his father, Duncan, is responsible for the crime.

Monk's less than holiday mood is only worsened when he's accused of shooting Santa and becomes the most hated man in the city.

Phillip Stroh claims to have information about three future murders and wants to make a deal with the District Attorney's office; however, part of the deal includes a private one-on-one interview with Rusty.

Dr. Lightman and Dr. Foster help an angry teen find his birth parents, while Eli and Ria try to figure out who was responsible for a fatal "Black Friday" trampling incident at an electronics store.

The Machine identifies a school teacher who witnessed a mob hit as their next POI. Now, Reese and Finch protect the unfortunate soul who was in the wrong place at the wrong time.

Murtaugh and Cole investigate after a robbery of a truck filled with fine art. Cole deals with lingering feelings for Natalie after a development in her life. Meanwhile, Riana blackmails Murtaugh into letting her go to a concert after she catches him in a lie he told Trish.

The team tries to rescue a teenage girl kidnapped by robbers; Voight and Platt attempt to clear Olinsky's name.

Sarah seeks peace; the detectives pick up a new case; Sarah risks her life when a loved one goes missing.

Phillip Stroh claims to have information about three future murders and wants to make a deal with the District Attorney's office; however, part of the deal includes a private one-on-one interview with Rusty.

The Machine identifies a school teacher who witnessed a mob hit as their next POI. Now, Reese and Finch protect the unfortunate soul who was in the wrong place at the wrong time.

Dr. Lightman and Dr. Foster help an angry teen find his birth parents, while Eli and Ria try to figure out who was responsible for a fatal "Black Friday" trampling incident at an electronics store.

Murtaugh and Cole investigate after a robbery of a truck filled with fine art. Cole deals with lingering feelings for Natalie after a development in her life. Meanwhile, Riana blackmails Murtaugh into letting her go to a concert after she catches him in a lie he told Trish.