Sipowicz investigates the murder of a pimp in which evidence points to a cop that Sipowicz once helped out with a problem of his. Later, Simone mentions the case to his girlfriend reporter Benita, and soon regrets it when the story hits the papers which leads to the suspect committing suicide. Benita denies leaking the story, but Simone refuses to believe her and ends their romance. Meanwhile, Donna's former boyfriend, Harold, a ex-New York Ranger hockey player, returns to the city and meets with Donna, while Meadvoy overreacts with jealousy. Donna confides her situation with her sister, Dana, but she manipulates Donna by sowing seeds of anxiety into her about Medavoy and his neurosis. Elsewhere, Martinez begins to develop feelings for Lesniak.

Five Ecuadorians are found murdered at a small nightclub in an apparent robbery gone bad. Sipowicz, Simone, and Martinez work on the case where a tip from a waiter at the club leads them to try to find the two killers responsible. Meanwhile, Simone begins his undercover work for the FBI when he secretly meets with Joey Salvo who wants Simone to run a license plate number for him. Also, Russell and Medavoy are looking into a suspect in a spouse abuse case where Medavoy's commitment to Abby and Kathy hampers the investigation due to Medavoy's emotional attitude. Also, Medavoy discovers that Detective Gotelli is stealing money out of his locker in the light of his medical condition.