One of the Reagans is shot by a gang member, and Danny pursues a suspect while trying to keep his emotions in check. To add to the complications, Danny has to find an inventive way to bring in witnesses.

Baez gets injured while escorting confiscated drugs, so Danny goes after the drug cartel responsible. A lieutenant with a commendable record engages in controversial behavior, putting Frank in a difficult situation.

Jamie stands up for an officer who is harassed for testifying against her partner. Erin learns her lover may be her boss at the DA's office. Danny asks Erin to file murder charges against a man who shot a 15-year-old girl who ended up dying 8 years later.

Frank is put in a difficult position when Danny is charged with using excessive force. Jamie meets a female doctor, and it makes Eddie uneasy.

A woman's abusive boyfriend targets Jamie after he intercedes in a domestic dispute. The press gets hold of an illegal tape capturing Henry's insensitive comments, and Frank must deal with the ensuing scandal.

When NYPD Deputy Chief Donald Kent and his wife are gunned down in an apparent gang hit, Frank orders the entire department to scour the city for his friend's killer.

Frank is taken by surprise during an on-air interview with Erin's boss. Danny and his new boss clash as they investigate a drive-by shooting. Jamie and Eddie help out detectives with an apparent suicide.

Eddie goes on her first undercover operation to investigate a kidnapping ring targeting young women via fake youth hostel websites. Frank helps a woman he knows from early in his career meet the inmate who killed her family.

Three community leaders are killed in apparent hate crimes — Danny and Baez investigate. Linda wants to protect herself with a gun after getting mugged.

Frank goes toe to toe with an investigative journalist who refuses to give up her source, despite the source admitting to committing murder. Danny is paired with a troubled teenager as part of an NYPD program aimed at influencing youths to make better decisions.

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.

Danny is conflicted when he learns that a group of highly trained Army veterans are responsible for a robbery. After a bomb scare in the subway turns out to be the work of a famous street artist, Garrett and Gormley argue about how to deal with the fallout.

Erin is rattled when an unknown assailant breaks into her apartment and also attacks her co-worker. Jamie and Eddie discover a pipe bomb in an elderly woman’s apartment. Frank looks into a charity that is soliciting money for the NYPD.

Danny and Baez look into the murder of a lower income resident living in a luxury building where a percentage of units are available for lower income housing. Frank takes issue with a detective friend of Gormley’s who takes advantage of his position with legal loopholes.

Frank is faced with a public backlash after an officer's body camera malfunctions during an altercation.

Danny and Baez investigate when a homeowner shoots an intruder, only to find out that the intruder was a hit man. A young attorney attempts to bring justice to his mother who Erin put away on a murder charge 12 years ago.

A mob informant returns to the city to testify in a case for Erin — Danny and Baez are tasked with protecting him. Frank and Mayor Poole get into heated negotiations regarding benefits for police officers.

Frank pushes to find evidence against a suspected cop killer who shot one of Henry’s fellow officers years ago. Danny and Baez investigate a string of murders involving adult film stars.

A celebrity chef from reality TV is murdered and a suspect readily confesses to the crime, but Danny and Baez think there is more to the case. Jamie and Jenko investigate a bizarre assault. A senator uses his friendship with Frank to ask for a favor regarding a DUI charge.

Jamie gets Danny involved when he finds a homeless teen who claims his aunt was killed by her boyfriend. Erin is angered when McCoy replaces her as the prosecutor on a case involving a corrections officer.

Baez is held hostage in an interrogation room by a distressed man who wants to see his daughter. Garrett's son gets in trouble with the law, so Garrett turns to Frank for help, creating an ethical dilemma for the police commissioner.

Danny and Baez are temporarily assigned new partners when an officer is outed and his current partner won't ride with him. Jamie and Eddie work on a revenge mission to steal a collar from a pompous detective. Frank compromises his relationship with the Archdiocese when he speaks out about equality in the police force.