Frank and Danny are determined to make sure that an international felon who always manages to walk away from murder charges ends up behind bars. Erin thinks about going into private practice after she looks into college costs for Nicky. Danny clashes with his new boss.

When Frank’s first partner announces plans to publish a book filled with stories of their early days on the force, Frank worries about his personal stories being made public. When Jamie and Eddie catch a call about a nearby officer needing assistance, the choices they each make will affect their future in the department and their relationship.

Jamie and Danny disagree about how to handle a reckless NYPD rookie, who is the son of Danny’s friend. When Erin’s investigator gets roped into a bad investment by his cousin, she offers to look into it.

Intent on bringing justice to Lieutenant Gormley after he is beaten by a mob outside his home, Danny and Frank enlist the aid of Detective Abetemarco, who has a personal connection to the neighborhood where the attack occurred. Eddie and Jamie witness a dishonest arrest. Danny searches for a witness to testify against a dangerous gang leader.

When the son of Frank's most outspoken critic is murdered, Frank and the boy's father must put aside their differences to seek justice.

When diplomatic immunity complicates a child abuse case for Danny and Baez, Frank intervenes, despite not having jurisdiction on the case. A robbery occurs while Eddie and Jamie are on a double date with Eddie's boyfriend and his sister, and they are forced to step in.

When Linda's brother gets into trouble with the mob, he begs Danny to help him stay safe until it blows over. Frank faces a public relations nightmare when the lawyer of a wrongfully arrested man demands that NYPD records be made public.