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.

Erin is conflicted by the weight of her authority in the sentencing of a man who is guilty of vehicular homicide; Danny and Baez pursue a rideshare rapist; Jamie and Eddie team up to aid a fellow officer when his partner is shot on the job.

Eddie and her partner, Officer Rachel Witten, are heralded for their bravery for stopping an active shooter, until a civilian comes forward to accuse them of faking the incident as part of a government conspiracy.

The Reagans confront hard choices on the job when Frank deals with a police captain who's losing his grip over his precinct, and Danny faces backlash from the Baez and Internal Affairs over a tough call he made in the field.

Frank asks Erin to liaise between him and NY Governor Mendez regarding policy reform he privately backs, but can’t publicly support, because it goes against police rank and file. Danny and Baez become enmeshed in the world of competitive gaming when a high-profile video game streamer is murdered, and Eddie and Witten suspect a live-in nanny is being abused after she approaches them on the street for help.

Frank takes matters into his own hands to save Gormley's career when complaints against him become public knowledge; Danny and Baez learn to be allies when the transgender community comes under attack.

Business becomes personal for Frank and his 1 Police Plaza team when Baker is assaulted on the street, as well as for Erin, when she asks her ex-husband, Jack Boyle, to represent a defendant she’s prosecuting. Also, Eddie wonders if she’s being too stubborn after she publicly undermines one of Jamie’s decisions at work, and Danny and Baez investigate the attempted murder of a couple with huge secrets.

Danny consults a psychic to solve the murder of a young boy; Frank is at odds with the mayor over how best to protect the city from an uptick in crime following a high-profile shooting; Erin investigates a decades-old case.

Frank must decide between remaining police commissioner and pursuing a new professional chapter when his old friend presents him with an exciting job offer. Danny and Baez investigate the murder of a restaurant delivery man.

Jamie faces backlash from fellow officers when he partners with Erin and Anthony to investigate an underground bar the NYPD and FDNY use to hide their criminal indiscretions; Eddie's partner considers leaving the force.

Eddie's former partner returns and brings an accusation of excessive force against an officer; Danny and Baez clash with a troubled foster child at the center of their latest investigation; Erin must make a tough decision about her campaign.