Baez gets injured while escorting confiscated drugs, so Danny goes after the drug cartel responsible. Elsewhere, 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.

Danny Reagan is accused of police brutality. Frank has to walk a fine line in the investigation and find the truth. Jamie meets a female doctor, and it makes Janko uneasy.

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

Danny and Frank will join forces to put an international criminal behind bars for good.

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. Meanwhile, Jamie and Jenko help out detectives with an apparent suicide.

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

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

When a group of highly trained Army veterans robs a bank, Danny feels conflicted; a street artist is responsible for a bomb scare.

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

When a homeowner shoots an intruder, Danny and Baez' investigation finds the intruder is a hitman. A 12-year old murder case of Erin's is reopened as an attorney tries to find justice for his mother.

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 disagrees with a detective friend of Gormleys.

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

An investigative journalist refuses to give up a source who admitted to committing murder.

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