When a police officer who worked with Owen and Arroyo is killed while moonlighting for a rap mogul, Clark is called to investigate. Meanwhile, Clark threatens to expose Arroyo and McKenzie's relationship.

Clark and Owen investigate the murder of a wealthy philanthropist who is also the daughter-in-law of a shipping mogul. Meanwhile, Clark’s mother asks for help with a loan shark who is harassing her.

When the family of a star basketball player who was found murdered ignites a high-profile investigation, the case unearths Clark’s feelings about his family struggles. Meanwhile, McKenzie threatens to end her partnership with Arroyo after she finds out he lied to her.

When Clark is relegated to desk duty, he delves into Owen’s cold case in which the murder investigation of a construction worker was compromised by the events of 9/11. Meanwhile, Deputy Mayor Holbrook pulls a gun on Clark and Margot, Agnes drives away with her father, and Owen gets his long deserved promotion.