As he is being interviewed, Walter Clark recalls his epic rise from homicide detective to the youngest police commissioner in the history of the NYPD.
Clark and Arroya's rivalry continues as they investigate the murder of a drug-addicted young woman with a missing daughter.
While Clark investigates the death of a gangbanger in the projects, Arroyo threatens to expose him about giving an informant confiscated money.
Clark investigates when a police officer moonlighting for a hip hop mogul is killed. Arroyo and McKenzie's relationship is in danger of being outed by Clark.
When the brother of Owen's former criminal informant is murdered, Owen takes the lead. Clark must decide whether to let his newly sober mother back into his life.
Clark and Owen delve into the murder of the wealthy daughter-in-law of a shipping mogul. Nora needs Clark's help with the loan shark who's after her.
When bullets from a recent shooting match the gun that killed her brother, McKenzie sets out to find justice for her family. Owen is having second thoughts about his retirement in two years.
With Arroyo and Owen both up for promotions, the race is on to make a key arrest.
As the team searches for the killer of a priest, clues lead to a criminal informant from a previous case. Agnes searches for Nora when she goes missing.
As the team searches for the person who murdered a young model, Clark is suspected of leaking information to the press.
Clark's feelings about his family surface as he investigates the murder of star basketball player. Arroyo's lie may be the last straw for McKenzie.
Clark discovers archenemy Deputy Mayor Holbrook was the last client of a now dead call girl. Detective Diaco must decide whether to put his father in a nursing home. Clark and Agnes' estranged father shows up.
Stuck on desk duty, Clark concentrates on Owen's cold case. Clark and Margot are confronted by Holbrook when he pulls a gun on them. Agnes rides off with her father. The promotion Owen should have gotten long ago is finally awarded.