Clark, relegated to desk duty, tries to solve a cold case from Owen's past during the Season 1 finale, which also finds him and Margot being threatened at gunpoint by deputy mayor Carlton Holbrook. Elsewhere, Agnes takes off with her father; and Owen gets his promotion.

Clark investigates the murder of a high-end prostitute who was last seen alive by deputy mayor Carlton Holbrook. At the same time, Diaco feels conflicted about his decision to place his ailing father in a nursing home.

Clark reflects on his own family's struggles during a high-profile murder investigation involving the death of a star basketball player. Meanwhile, McKenzie doesn't take being lied to by Arroyo lightly and threatens to break up their partnership.

Clark is suspected of leaking information to reporter Margot Dixon, whom he has been secretly dating, regarding the murder of an aspiring young model whose body was found floating in the bay.

The team search for the killer of a priest, an investigation that leads them to suspect a criminal informant from a previous case is responsible for this murder. Elsewhere, Agnes is determined to find her missing mom.

Both Owen and Arroyo race to make a key arrest after learning they are competing against one another for a promotion.

McKenzie catches a break in a case that's near and dear to her heart when bullets found at the scene of a subway shooting match those used to kill her brother several years ago. Meanwhile, Owen begins to have second thoughts about his impending retirement.

A wealthy philanthropist is found dead in her apartment. As Clark and Owen investigate, they discover she was a recovering addict with a shady past. Elsewhere, Clark's mother, Nora, asks for help with a loan shark who is harassing her.

Owen takes a special interest in a murder investigation when the victim, an airport supervisor, also turns out to be the brother of a confidential informant who was killed a few years ago. Meanwhile, Clark's newly sober mother shows up wanting to reconnect with her children, but Clark is hesitant to let her.

Clark investigates the death of a police officer who was moonlighting for a hip-hop mogul; and he gets to turn the tables on Arroyo by threatening to expose his relationship with McKenzie.

Clark and Owen investigate the murder of a gang member at a housing development, where a teen was also injured; and Arroyo threatens to go public with evidence that Clark gave a criminal informant confiscated money.

A pretty thief tries to keep herself out of jail by giving Clark information about a murdered drug addict and her missing child.

Street cop Walter William Clark Jr. ruffles some feathers when he's promoted to homicide detective in the opener of this drama, which follows his meteoric rise to becoming the youngest police commissioner in New York City's history, and the price he paid to achieve it.