Frank and Garrett devise a plan to convince Mayor Chase to work better with others in order to properly run the city, and Danny and Baez try to track down a perp who vandalized several NYPD vehicles with anti-cop graffiti and made threats against officers. Also, Erin is shaken after she's in a car accident, and Eddie and Jamie argue about whether they should keep a stray dog who leads them to a crime scene.

Danny and Baez are faced with tracking down a drug dealer after two young models are found dead from an overdose. Also, Eddie and Jamie team up to determine who the mastermind is behind a robbery.