Frank contends with a potentially dirty cop within the ranks. Eddie and Badillo track down the culprits behind the theft of valuable, rare works from a celebrated bookstore. Erin snoops into the background of a new woman in Anthony's life.

Frank contends with public outcry to defund the NYPD School Safety Division, after a physical altercation between a school officer and a student goes viral. Danny and Baez help a father track down his missing ex-wife and daughter.

Erin is stalked by a man who was recently released from prison. Jamie works to save his badge when he is caught driving under the influence after he is unknowingly given drugs at a party. Frank navigates multiple family issues.

Frank clashes with the team when one of the members becomes the focus of a departmental investigation. Jamie and Danny team up to investigate a series of carjackings involving one of Danny's criminal informants.